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C++ clange_函数代码示例

本文整理汇总了C++中clange_函数的典型用法代码示例。如果您正苦于以下问题:C++ clange_函数的具体用法?C++ clange_怎么用?C++ clange_使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了clange_函数的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: r_cnjg

/* Subroutine */ int cppt03_(char *uplo, integer *n, complex *a, complex *
	ainv, complex *work, integer *ldwork, real *rwork, real *rcond, real *
	resid)
{
    /* System generated locals */
    integer work_dim1, work_offset, i__1, i__2, i__3;
    complex q__1;

    /* Builtin functions */
    void r_cnjg(complex *, complex *);

    /* Local variables */
    integer i__, j, jj;
    real eps;
    extern logical lsame_(char *, char *);
    real anorm;
    extern /* Subroutine */ int ccopy_(integer *, complex *, integer *, 
	    complex *, integer *), chpmv_(char *, integer *, complex *, 
	    complex *, complex *, integer *, complex *, complex *, integer *);
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *), clanhp_(char *, char *, integer *, 
	    complex *, real *), slamch_(char *);
    real ainvnm;


/*  -- LAPACK test routine (version 3.1) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  CPPT03 computes the residual for a Hermitian packed matrix times its */
/*  inverse: */
/*     norm( I - A*AINV ) / ( N * norm(A) * norm(AINV) * EPS ), */
/*  where EPS is the machine epsilon. */

/*  Arguments */
/*  ========== */

/*  UPLO    (input) CHARACTER*1 */
/*          Specifies whether the upper or lower triangular part of the */
/*          Hermitian matrix A is stored: */
/*          = 'U':  Upper triangular */
/*          = 'L':  Lower triangular */

/*  N       (input) INTEGER */
/*          The number of rows and columns of the matrix A.  N >= 0. */

/*  A       (input) COMPLEX array, dimension (N*(N+1)/2) */
/*          The original Hermitian matrix A, stored as a packed */
/*          triangular matrix. */

/*  AINV    (input) COMPLEX array, dimension (N*(N+1)/2) */
/*          The (Hermitian) inverse of the matrix A, stored as a packed */
/*          triangular matrix. */

/*  WORK    (workspace) COMPLEX array, dimension (LDWORK,N) */

/*  LDWORK  (input) INTEGER */
/*          The leading dimension of the array WORK.  LDWORK >= max(1,N). */

/*  RWORK   (workspace) REAL array, dimension (N) */

/*  RCOND   (output) REAL */
/*          The reciprocal of the condition number of A, computed as */
/*          ( 1/norm(A) ) / norm(AINV). */

/*  RESID   (output) REAL */
/*          norm(I - A*AINV) / ( N * norm(A) * norm(AINV) * EPS ) */

/*  ===================================================================== */

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
/*     .. External Functions .. */
/*     .. */
/*     .. Intrinsic Functions .. */
/*     .. */
/*     .. External Subroutines .. */
/*     .. */
/*     .. Executable Statements .. */

/*     Quick exit if N = 0. */

    /* Parameter adjustments */
    --a;
    --ainv;
    work_dim1 = *ldwork;
    work_offset = 1 + work_dim1;
    work -= work_offset;
    --rwork;

//.........这里部分代码省略.........
开发者ID:kstraube,项目名称:hysim,代码行数:101,代码来源:cppt03.c

示例2: s_rsle

/* Subroutine */ int cchkgl_(integer *nin, integer *nout)
{
    /* Format strings */
    static char fmt_9999[] = "(\002 .. test output of CGGBAL .. \002)";
    static char fmt_9998[] = "(\002 ratio of largest test error             "
	    " = \002,e12.3)";
    static char fmt_9997[] = "(\002 example number where info is not zero   "
	    " = \002,i4)";
    static char fmt_9996[] = "(\002 example number where ILO or IHI is wrong"
	    " = \002,i4)";
    static char fmt_9995[] = "(\002 example number having largest error     "
	    " = \002,i4)";
    static char fmt_9994[] = "(\002 number of examples where info is not 0  "
	    " = \002,i4)";
    static char fmt_9993[] = "(\002 total number of examples tested         "
	    " = \002,i4)";

    /* System generated locals */
    integer i__1, i__2, i__3, i__4;
    real r__1, r__2, r__3;
    complex q__1;

    /* Builtin functions */
    integer s_rsle(cilist *), do_lio(integer *, integer *, char *, ftnlen), 
	    e_rsle(void);
    double c_abs(complex *);
    integer s_wsfe(cilist *), e_wsfe(void), do_fio(integer *, char *, ftnlen);

    /* Local variables */
    complex a[400]	/* was [20][20] */, b[400]	/* was [20][20] */;
    integer i__, j, n;
    complex ain[400]	/* was [20][20] */, bin[400]	/* was [20][20] */;
    integer ihi, ilo;
    real eps;
    integer knt, info, lmax[3];
    real rmax, vmax, work[120];
    integer ihiin, ninfo, iloin;
    real anorm, bnorm;
    extern /* Subroutine */ int cggbal_(char *, integer *, complex *, integer 
	    *, complex *, integer *, integer *, integer *, real *, real *, 
	    real *, integer *);
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    real lscale[20];
    extern doublereal slamch_(char *);
    real rscale[20], lsclin[20], rsclin[20];

    /* Fortran I/O blocks */
    static cilist io___6 = { 0, 0, 0, 0, 0 };
    static cilist io___9 = { 0, 0, 0, 0, 0 };
    static cilist io___12 = { 0, 0, 0, 0, 0 };
    static cilist io___14 = { 0, 0, 0, 0, 0 };
    static cilist io___17 = { 0, 0, 0, 0, 0 };
    static cilist io___19 = { 0, 0, 0, 0, 0 };
    static cilist io___21 = { 0, 0, 0, 0, 0 };
    static cilist io___23 = { 0, 0, 0, 0, 0 };
    static cilist io___34 = { 0, 0, 0, fmt_9999, 0 };
    static cilist io___35 = { 0, 0, 0, fmt_9998, 0 };
    static cilist io___36 = { 0, 0, 0, fmt_9997, 0 };
    static cilist io___37 = { 0, 0, 0, fmt_9996, 0 };
    static cilist io___38 = { 0, 0, 0, fmt_9995, 0 };
    static cilist io___39 = { 0, 0, 0, fmt_9994, 0 };
    static cilist io___40 = { 0, 0, 0, fmt_9993, 0 };



/*  -- LAPACK test routine (version 3.1) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  CCHKGL tests CGGBAL, a routine for balancing a matrix pair (A, B). */

/*  Arguments */
/*  ========= */

/*  NIN     (input) INTEGER */
/*          The logical unit number for input.  NIN > 0. */

/*  NOUT    (input) INTEGER */
/*          The logical unit number for output.  NOUT > 0. */

/*  ===================================================================== */

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
/*     .. Local Arrays .. */
/*     .. */
/*     .. External Functions .. */
/*     .. */
/*     .. External Subroutines .. */
/*     .. */
/*     .. Intrinsic Functions .. */
//.........这里部分代码省略.........
开发者ID:kstraube,项目名称:hysim,代码行数:101,代码来源:cchkgl.c

示例3: ctzt01_

doublereal ctzt01_(integer *m, integer *n, complex *a, complex *af, integer *
	lda, complex *tau, complex *work, integer *lwork)
{
    /* System generated locals */
    integer a_dim1, a_offset, af_dim1, af_offset, i__1, i__2, i__3, i__4;
    real ret_val;

    /* Local variables */
    integer i__, j;
    real norma;
    real rwork[1];


/*  -- LAPACK test routine (version 3.1) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  CTZT01 returns */
/*       || A - R*Q || / ( M * eps * ||A|| ) */
/*  for an upper trapezoidal A that was factored with CTZRQF. */

/*  Arguments */
/*  ========= */

/*  M       (input) INTEGER */
/*          The number of rows of the matrices A and AF. */

/*  N       (input) INTEGER */
/*          The number of columns of the matrices A and AF. */

/*  A       (input) COMPLEX array, dimension (LDA,N) */
/*          The original upper trapezoidal M by N matrix A. */

/*  AF      (input) COMPLEX array, dimension (LDA,N) */
/*          The output of CTZRQF for input matrix A. */
/*          The lower triangle is not referenced. */

/*  LDA     (input) INTEGER */
/*          The leading dimension of the arrays A and AF. */

/*  TAU     (input) COMPLEX array, dimension (M) */
/*          Details of the  Householder transformations as returned by */
/*          CTZRQF. */

/*  WORK    (workspace) COMPLEX array, dimension (LWORK) */

/*  LWORK   (input) INTEGER */
/*          The length of the array WORK.  LWORK >= m*n + m. */

/*  ===================================================================== */

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
/*     .. Local Arrays .. */
/*     .. */
/*     .. External Functions .. */
/*     .. */
/*     .. External Subroutines .. */
/*     .. */
/*     .. Intrinsic Functions .. */
/*     .. */
/*     .. Executable Statements .. */

    /* Parameter adjustments */
    af_dim1 = *lda;
    af_offset = 1 + af_dim1;
    af -= af_offset;
    a_dim1 = *lda;
    a_offset = 1 + a_dim1;
    a -= a_offset;
    --tau;
    --work;

    /* Function Body */
    ret_val = 0.f;

    if (*lwork < *m * *n + *m) {
	this_xerbla_("CTZT01", &c__8);
	return ret_val;
    }

/*     Quick return if possible */

    if (*m <= 0 || *n <= 0) {
	return ret_val;
    }

    norma = clange_("One-norm", m, n, &a[a_offset], lda, rwork);

/*     Copy upper triangle R */
//.........这里部分代码省略.........
开发者ID:juanjosegarciaripoll,项目名称:cblapack,代码行数:101,代码来源:ctzt01.c

示例4: form


//.........这里部分代码省略.........
                  =N+3: reordering failed in CTGSEN.   

    =====================================================================   


       Decode the input arguments   

       Parameter adjustments */
    /* Table of constant values */
    static complex c_b1 = {0.f,0.f};
    static complex c_b2 = {1.f,0.f};
    static integer c__1 = 1;
    static integer c__0 = 0;
    static integer c_n1 = -1;
    
    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, vsl_dim1, vsl_offset, 
	    vsr_dim1, vsr_offset, i__1, i__2;
    /* Builtin functions */
    double sqrt(doublereal);
    /* Local variables */
    static integer ijob;
    static real anrm, bnrm;
    static integer ierr, itau, iwrk, i__;
    extern logical lsame_(char *, char *);
    static integer ileft, icols;
    static logical cursl, ilvsl, ilvsr;
    static integer irwrk, irows;
    extern /* Subroutine */ int cggbak_(char *, char *, integer *, integer *, 
	    integer *, real *, real *, integer *, complex *, integer *, 
	    integer *), cggbal_(char *, integer *, complex *, 
	    integer *, complex *, integer *, integer *, integer *, real *, 
	    real *, real *, integer *), slabad_(real *, real *);
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    static real pl;
    extern /* Subroutine */ int cgghrd_(char *, char *, integer *, integer *, 
	    integer *, complex *, integer *, complex *, integer *, complex *, 
	    integer *, complex *, integer *, integer *), 
	    clascl_(char *, integer *, integer *, real *, real *, integer *, 
	    integer *, complex *, integer *, integer *);
    static real pr;
    static logical ilascl, ilbscl;
    extern /* Subroutine */ int cgeqrf_(integer *, integer *, complex *, 
	    integer *, complex *, complex *, integer *, integer *), clacpy_(
	    char *, integer *, integer *, complex *, integer *, complex *, 
	    integer *), claset_(char *, integer *, integer *, complex 
	    *, complex *, complex *, integer *), xerbla_(char *, 
	    integer *);
    extern integer ilaenv_(integer *, char *, char *, integer *, integer *, 
	    integer *, integer *, ftnlen, ftnlen);
    extern doublereal slamch_(char *);
    static real bignum;
    extern /* Subroutine */ int chgeqz_(char *, char *, char *, integer *, 
	    integer *, integer *, complex *, integer *, complex *, integer *, 
	    complex *, complex *, complex *, integer *, complex *, integer *, 
	    complex *, integer *, real *, integer *), 
	    ctgsen_(integer *, logical *, logical *, logical *, integer *, 
	    complex *, integer *, complex *, integer *, complex *, complex *, 
	    complex *, integer *, complex *, integer *, integer *, real *, 
	    real *, real *, complex *, integer *, integer *, integer *, 
	    integer *);
    static integer ijobvl, iright, ijobvr;
    static logical wantsb;
    static integer liwmin;
    static logical wantse, lastsl;
开发者ID:EugeneGalipchak,项目名称:antelope_contrib,代码行数:67,代码来源:cggesx.c

示例5: c_matrix_norm

	DLLEXPORT float c_matrix_norm(char norm, MKL_INT m, MKL_INT n, MKL_Complex8 a[], float work[])
	{
		return clange_(&norm, &m, &n, a, &m, work);
	}
开发者ID:the-vk,项目名称:mathnet-numerics,代码行数:4,代码来源:lapack.cpp

示例6: cgemm_

/* Subroutine */ int cgrqts_(integer *m, integer *p, integer *n, complex *a, 
	complex *af, complex *q, complex *r__, integer *lda, complex *taua, 
	complex *b, complex *bf, complex *z__, complex *t, complex *bwk, 
	integer *ldb, complex *taub, complex *work, integer *lwork, real *
	rwork, real *result)
{
    /* System generated locals */
    integer a_dim1, a_offset, af_dim1, af_offset, r_dim1, r_offset, q_dim1, 
	    q_offset, b_dim1, b_offset, bf_dim1, bf_offset, t_dim1, t_offset, 
	    z_dim1, z_offset, bwk_dim1, bwk_offset, i__1, i__2;
    real r__1;
    complex q__1;

    /* Local variables */
    static integer info;
    static real unfl;
    extern /* Subroutine */ int cgemm_(char *, char *, integer *, integer *, 
	    integer *, complex *, complex *, integer *, complex *, integer *, 
	    complex *, complex *, integer *), cherk_(char *, 
	    char *, integer *, integer *, real *, complex *, integer *, real *
	    , complex *, integer *);
    static real resid, anorm, bnorm;
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *), clanhe_(char *, char *, integer *, 
	    complex *, integer *, real *), slamch_(char *);
    extern /* Subroutine */ int cggrqf_(integer *, integer *, integer *, 
	    complex *, integer *, complex *, complex *, integer *, complex *, 
	    complex *, integer *, integer *), clacpy_(char *, integer *, 
	    integer *, complex *, integer *, complex *, integer *), 
	    claset_(char *, integer *, integer *, complex *, complex *, 
	    complex *, integer *), cungqr_(integer *, integer *, 
	    integer *, complex *, integer *, complex *, complex *, integer *, 
	    integer *), cungrq_(integer *, integer *, integer *, complex *, 
	    integer *, complex *, complex *, integer *, integer *);
    static real ulp;


#define q_subscr(a_1,a_2) (a_2)*q_dim1 + a_1
#define q_ref(a_1,a_2) q[q_subscr(a_1,a_2)]
#define r___subscr(a_1,a_2) (a_2)*r_dim1 + a_1
#define r___ref(a_1,a_2) r__[r___subscr(a_1,a_2)]
#define z___subscr(a_1,a_2) (a_2)*z_dim1 + a_1
#define z___ref(a_1,a_2) z__[z___subscr(a_1,a_2)]
#define af_subscr(a_1,a_2) (a_2)*af_dim1 + a_1
#define af_ref(a_1,a_2) af[af_subscr(a_1,a_2)]
#define bf_subscr(a_1,a_2) (a_2)*bf_dim1 + a_1
#define bf_ref(a_1,a_2) bf[bf_subscr(a_1,a_2)]


/*  -- LAPACK test routine (version 3.0) --   
       Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,   
       Courant Institute, Argonne National Lab, and Rice University   
       September 30, 1994   


    Purpose   
    =======   

    CGRQTS tests CGGRQF, which computes the GRQ factorization of an   
    M-by-N matrix A and a P-by-N matrix B: A = R*Q and B = Z*T*Q.   

    Arguments   
    =========   

    M       (input) INTEGER   
            The number of rows of the matrix A.  M >= 0.   

    P       (input) INTEGER   
            The number of rows of the matrix B.  P >= 0.   

    N       (input) INTEGER   
            The number of columns of the matrices A and B.  N >= 0.   

    A       (input) COMPLEX array, dimension (LDA,N)   
            The M-by-N matrix A.   

    AF      (output) COMPLEX array, dimension (LDA,N)   
            Details of the GRQ factorization of A and B, as returned   
            by CGGRQF, see CGGRQF for further details.   

    Q       (output) COMPLEX array, dimension (LDA,N)   
            The N-by-N unitary matrix Q.   

    R       (workspace) COMPLEX array, dimension (LDA,MAX(M,N))   

    LDA     (input) INTEGER   
            The leading dimension of the arrays A, AF, R and Q.   
            LDA >= max(M,N).   

    TAUA    (output) COMPLEX array, dimension (min(M,N))   
            The scalar factors of the elementary reflectors, as returned   
            by SGGQRC.   

    B       (input) COMPLEX array, dimension (LDB,N)   
            On entry, the P-by-N matrix A.   

    BF      (output) COMPLEX array, dimension (LDB,N)   
            Details of the GQR factorization of A and B, as returned   
            by CGGRQF, see CGGRQF for further details.   

//.........这里部分代码省略.........
开发者ID:zangel,项目名称:uquad,代码行数:101,代码来源:cgrqts.c

示例7: cgemv_

/* Subroutine */ int cbdt02_(integer *m, integer *n, complex *b, integer *ldb, 
	 complex *c__, integer *ldc, complex *u, integer *ldu, complex *work, 
	real *rwork, real *resid)
{
    /* System generated locals */
    integer b_dim1, b_offset, c_dim1, c_offset, u_dim1, u_offset, i__1;
    real r__1, r__2;

    /* Local variables */
    integer j;
    real eps;
    extern /* Subroutine */ int cgemv_(char *, integer *, integer *, complex *
, complex *, integer *, complex *, integer *, complex *, complex *
, integer *);
    real bnorm;
    extern /* Subroutine */ int ccopy_(integer *, complex *, integer *, 
	    complex *, integer *);
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *), slamch_(char *);
    real realmn;
    extern doublereal scasum_(integer *, complex *, integer *);


/*  -- LAPACK test routine (version 3.1) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  CBDT02 tests the change of basis C = U' * B by computing the residual */

/*     RESID = norm( B - U * C ) / ( max(m,n) * norm(B) * EPS ), */

/*  where B and C are M by N matrices, U is an M by M orthogonal matrix, */
/*  and EPS is the machine precision. */

/*  Arguments */
/*  ========= */

/*  M       (input) INTEGER */
/*          The number of rows of the matrices B and C and the order of */
/*          the matrix Q. */

/*  N       (input) INTEGER */
/*          The number of columns of the matrices B and C. */

/*  B       (input) COMPLEX array, dimension (LDB,N) */
/*          The m by n matrix B. */

/*  LDB     (input) INTEGER */
/*          The leading dimension of the array B.  LDB >= max(1,M). */

/*  C       (input) COMPLEX array, dimension (LDC,N) */
/*          The m by n matrix C, assumed to contain U' * B. */

/*  LDC     (input) INTEGER */
/*          The leading dimension of the array C.  LDC >= max(1,M). */

/*  U       (input) COMPLEX array, dimension (LDU,M) */
/*          The m by m orthogonal matrix U. */

/*  LDU     (input) INTEGER */
/*          The leading dimension of the array U.  LDU >= max(1,M). */

/*  WORK    (workspace) COMPLEX array, dimension (M) */

/*  RWORK   (workspace) REAL array, dimension (M) */

/*  RESID   (output) REAL */
/*          RESID = norm( B - U * C ) / ( max(m,n) * norm(B) * EPS ), */

/* ====================================================================== */

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
/*     .. External Functions .. */
/*     .. */
/*     .. External Subroutines .. */
/*     .. */
/*     .. Intrinsic Functions .. */
/*     .. */
/*     .. Executable Statements .. */

/*     Quick return if possible */

    /* Parameter adjustments */
    b_dim1 = *ldb;
    b_offset = 1 + b_dim1;
    b -= b_offset;
    c_dim1 = *ldc;
    c_offset = 1 + c_dim1;
    c__ -= c_offset;
//.........这里部分代码省略.........
开发者ID:kstraube,项目名称:hysim,代码行数:101,代码来源:cbdt02.c

示例8: cgemm_

/* Subroutine */ int cqlt01_(integer *m, integer *n, complex *a, complex *af, 
	complex *q, complex *l, integer *lda, complex *tau, complex *work, 
	integer *lwork, real *rwork, real *result)
{
    /* System generated locals */
    integer a_dim1, a_offset, af_dim1, af_offset, l_dim1, l_offset, q_dim1, 
	    q_offset, i__1, i__2;

    /* Builtin functions */
    /* Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen);

    /* Local variables */
    real eps;
    integer info;
    extern /* Subroutine */ int cgemm_(char *, char *, integer *, integer *, 
	    integer *, complex *, complex *, integer *, complex *, integer *, 
	    complex *, complex *, integer *), cherk_(char *, 
	    char *, integer *, integer *, real *, complex *, integer *, real *
, complex *, integer *);
    real resid, anorm;
    integer minmn;
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    extern /* Subroutine */ int cgeqlf_(integer *, integer *, complex *, 
	    integer *, complex *, complex *, integer *, integer *);
    extern doublereal slamch_(char *);
    extern /* Subroutine */ int clacpy_(char *, integer *, integer *, complex 
	    *, integer *, complex *, integer *), claset_(char *, 
	    integer *, integer *, complex *, complex *, complex *, integer *);
    extern doublereal clansy_(char *, char *, integer *, complex *, integer *, 
	     real *);
    extern /* Subroutine */ int cungql_(integer *, integer *, integer *, 
	    complex *, integer *, complex *, complex *, integer *, integer *);


/*  -- LAPACK test routine (version 3.1) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  CQLT01 tests CGEQLF, which computes the QL factorization of an m-by-n */
/*  matrix A, and partially tests CUNGQL which forms the m-by-m */
/*  orthogonal matrix Q. */

/*  CQLT01 compares L with Q'*A, and checks that Q is orthogonal. */

/*  Arguments */
/*  ========= */

/*  M       (input) INTEGER */
/*          The number of rows of the matrix A.  M >= 0. */

/*  N       (input) INTEGER */
/*          The number of columns of the matrix A.  N >= 0. */

/*  A       (input) COMPLEX array, dimension (LDA,N) */
/*          The m-by-n matrix A. */

/*  AF      (output) COMPLEX array, dimension (LDA,N) */
/*          Details of the QL factorization of A, as returned by CGEQLF. */
/*          See CGEQLF for further details. */

/*  Q       (output) COMPLEX array, dimension (LDA,M) */
/*          The m-by-m orthogonal matrix Q. */

/*  L       (workspace) COMPLEX array, dimension (LDA,max(M,N)) */

/*  LDA     (input) INTEGER */
/*          The leading dimension of the arrays A, AF, Q and R. */
/*          LDA >= max(M,N). */

/*  TAU     (output) COMPLEX array, dimension (min(M,N)) */
/*          The scalar factors of the elementary reflectors, as returned */
/*          by CGEQLF. */

/*  WORK    (workspace) COMPLEX array, dimension (LWORK) */

/*  LWORK   (input) INTEGER */
/*          The dimension of the array WORK. */

/*  RWORK   (workspace) REAL array, dimension (M) */

/*  RESULT  (output) REAL array, dimension (2) */
/*          The test ratios: */
/*          RESULT(1) = norm( L - Q'*A ) / ( M * norm(A) * EPS ) */
/*          RESULT(2) = norm( I - Q'*Q ) / ( M * EPS ) */

/*  ===================================================================== */

/*     .. Parameters .. */
/*     .. */
/*     .. Local Scalars .. */
/*     .. */
//.........这里部分代码省略.........
开发者ID:kstraube,项目名称:hysim,代码行数:101,代码来源:cqlt01.c

示例9: test

/* Subroutine */ int cdrvpb_(logical *dotype, integer *nn, integer *nval, 
	integer *nrhs, real *thresh, logical *tsterr, integer *nmax, complex *
	a, complex *afac, complex *asav, complex *b, complex *bsav, complex *
	x, complex *xact, real *s, complex *work, real *rwork, integer *nout)
{
    /* Initialized data */

    static integer iseedy[4] = { 1988,1989,1990,1991 };
    static char facts[1*3] = "F" "N" "E";
    static char equeds[1*2] = "N" "Y";

    /* Format strings */
    static char fmt_9999[] = "(1x,a6,\002, UPLO='\002,a1,\002', N =\002,i5"
	    ",\002, KD =\002,i5,\002, type \002,i1,\002, test(\002,i1,\002)"
	    "=\002,g12.5)";
    static char fmt_9997[] = "(1x,a6,\002( '\002,a1,\002', '\002,a1,\002',"
	    " \002,i5,\002, \002,i5,\002, ... ), EQUED='\002,a1,\002', type"
	    " \002,i1,\002, test(\002,i1,\002)=\002,g12.5)";
    static char fmt_9998[] = "(1x,a6,\002( '\002,a1,\002', '\002,a1,\002',"
	    " \002,i5,\002, \002,i5,\002, ... ), type \002,i1,\002, test(\002"
	    ",i1,\002)=\002,g12.5)";

    /* System generated locals */
    address a__1[2];
    integer i__1, i__2, i__3, i__4, i__5, i__6, i__7[2];
    char ch__1[2];

    /* Builtin functions */
    /* Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen);
    integer s_wsfe(cilist *), do_fio(integer *, char *, ftnlen), e_wsfe(void);
    /* Subroutine */ int s_cat(char *, char **, integer *, integer *, ftnlen);

    /* Local variables */
    integer i__, k, n, i1, i2, k1, kd, nb, in, kl, iw, ku, nt, lda, ikd, nkd, 
	    ldab;
    char fact[1];
    integer ioff, mode, koff;
    real amax;
    char path[3];
    integer imat, info;
    char dist[1], uplo[1], type__[1];
    integer nrun, ifact;
    extern /* Subroutine */ int cget04_(integer *, integer *, complex *, 
	    integer *, complex *, integer *, real *, real *);
    integer nfail, iseed[4], nfact;
    extern /* Subroutine */ int cpbt01_(char *, integer *, integer *, complex 
	    *, integer *, complex *, integer *, real *, real *), 
	    cpbt02_(char *, integer *, integer *, integer *, complex *, 
	    integer *, complex *, integer *, complex *, integer *, real *, 
	    real *), cpbt05_(char *, integer *, integer *, integer *, 
	    complex *, integer *, complex *, integer *, complex *, integer *, 
	    complex *, integer *, real *, real *, real *);
    integer kdval[4];
    extern logical lsame_(char *, char *);
    char equed[1];
    integer nbmin;
    real rcond, roldc, scond;
    integer nimat;
    extern doublereal sget06_(real *, real *);
    real anorm;
    extern /* Subroutine */ int ccopy_(integer *, complex *, integer *, 
	    complex *, integer *), cpbsv_(char *, integer *, integer *, 
	    integer *, complex *, integer *, complex *, integer *, integer *);
    logical equil;
    extern /* Subroutine */ int cswap_(integer *, complex *, integer *, 
	    complex *, integer *);
    integer iuplo, izero, nerrs;
    logical zerot;
    char xtype[1];
    extern /* Subroutine */ int clatb4_(char *, integer *, integer *, integer 
	    *, char *, integer *, integer *, real *, integer *, real *, char *
), aladhd_(integer *, char *);
    extern doublereal clanhb_(char *, char *, integer *, integer *, complex *, 
	     integer *, real *), clange_(char *, integer *, 
	    integer *, complex *, integer *, real *);
    extern /* Subroutine */ int claqhb_(char *, integer *, integer *, complex 
	    *, integer *, real *, real *, real *, char *), 
	    alaerh_(char *, char *, integer *, integer *, char *, integer *, 
	    integer *, integer *, integer *, integer *, integer *, integer *, 
	    integer *, integer *), claipd_(integer *, 
	    complex *, integer *, integer *);
    logical prefac;
    real rcondc;
    logical nofact;
    char packit[1];
    integer iequed;
    extern /* Subroutine */ int clacpy_(char *, integer *, integer *, complex 
	    *, integer *, complex *, integer *), clarhs_(char *, char 
	    *, char *, char *, integer *, integer *, integer *, integer *, 
	    integer *, complex *, integer *, complex *, integer *, complex *, 
	    integer *, integer *, integer *), 
	    claset_(char *, integer *, integer *, complex *, complex *, 
	    complex *, integer *), cpbequ_(char *, integer *, integer 
	    *, complex *, integer *, real *, real *, real *, integer *), alasvm_(char *, integer *, integer *, integer *, integer 
	    *);
    real cndnum;
    extern /* Subroutine */ int clatms_(integer *, integer *, char *, integer 
	    *, char *, real *, integer *, real *, real *, integer *, integer *
, char *, complex *, integer *, complex *, integer *), cpbtrf_(char *, integer *, integer *, complex *, 
	    integer *, integer *);
//.........这里部分代码省略.........
开发者ID:kstraube,项目名称:hysim,代码行数:101,代码来源:cdrvpb.c

示例10: sqrt

/* Subroutine */ int cggevx_(char *balanc, char *jobvl, char *jobvr, char *
	sense, integer *n, complex *a, integer *lda, complex *b, integer *ldb, 
	 complex *alpha, complex *beta, complex *vl, integer *ldvl, complex *
	vr, integer *ldvr, integer *ilo, integer *ihi, real *lscale, real *
	rscale, real *abnrm, real *bbnrm, real *rconde, real *rcondv, complex 
	*work, integer *lwork, real *rwork, integer *iwork, logical *bwork, 
	integer *info)
{
    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, vl_dim1, vl_offset, vr_dim1, 
	    vr_offset, i__1, i__2, i__3, i__4;
    real r__1, r__2, r__3, r__4;
    complex q__1;

    /* Builtin functions */
    double sqrt(doublereal), r_imag(complex *);

    /* Local variables */
    integer i__, j, m, jc, in, jr;
    real eps;
    logical ilv;
    real anrm, bnrm;
    integer ierr, itau;
    real temp;
    logical ilvl, ilvr;
    integer iwrk, iwrk1;
    extern logical lsame_(char *, char *);
    integer icols;
    logical noscl;
    integer irows;
    extern /* Subroutine */ int cggbak_(char *, char *, integer *, integer *, 
	    integer *, real *, real *, integer *, complex *, integer *, 
	    integer *), cggbal_(char *, integer *, complex *, 
	    integer *, complex *, integer *, integer *, integer *, real *, 
	    real *, real *, integer *), slabad_(real *, real *);
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    extern /* Subroutine */ int cgghrd_(char *, char *, integer *, integer *, 
	    integer *, complex *, integer *, complex *, integer *, complex *, 
	    integer *, complex *, integer *, integer *), 
	    clascl_(char *, integer *, integer *, real *, real *, integer *, 
	    integer *, complex *, integer *, integer *);
    logical ilascl, ilbscl;
    extern /* Subroutine */ int cgeqrf_(integer *, integer *, complex *, 
	    integer *, complex *, complex *, integer *, integer *), clacpy_(
	    char *, integer *, integer *, complex *, integer *, complex *, 
	    integer *), claset_(char *, integer *, integer *, complex 
	    *, complex *, complex *, integer *), ctgevc_(char *, char 
	    *, logical *, integer *, complex *, integer *, complex *, integer 
	    *, complex *, integer *, complex *, integer *, integer *, integer 
	    *, complex *, real *, integer *);
    logical ldumma[1];
    char chtemp[1];
    real bignum;
    extern /* Subroutine */ int chgeqz_(char *, char *, char *, integer *, 
	    integer *, integer *, complex *, integer *, complex *, integer *, 
	    complex *, complex *, complex *, integer *, complex *, integer *, 
	    complex *, integer *, real *, integer *), 
	    ctgsna_(char *, char *, logical *, integer *, complex *, integer *
, complex *, integer *, complex *, integer *, complex *, integer *
, real *, real *, integer *, integer *, complex *, integer *, 
	    integer *, integer *);
    integer ijobvl;
    extern /* Subroutine */ int slascl_(char *, integer *, integer *, real *, 
	    real *, integer *, integer *, real *, integer *, integer *), xerbla_(char *, integer *);
    extern integer ilaenv_(integer *, char *, char *, integer *, integer *, 
	    integer *, integer *);
    extern doublereal slamch_(char *);
    integer ijobvr;
    logical wantsb;
    extern /* Subroutine */ int cungqr_(integer *, integer *, integer *, 
	    complex *, integer *, complex *, complex *, integer *, integer *);
    real anrmto;
    logical wantse;
    real bnrmto;
    extern /* Subroutine */ int cunmqr_(char *, char *, integer *, integer *, 
	    integer *, complex *, integer *, complex *, complex *, integer *, 
	    complex *, integer *, integer *);
    integer minwrk, maxwrk;
    logical wantsn;
    real smlnum;
    logical lquery, wantsv;


/*  -- LAPACK driver routine (version 3.1) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  CGGEVX computes for a pair of N-by-N complex nonsymmetric matrices */
/*  (A,B) the generalized eigenvalues, and optionally, the left and/or */
/*  right generalized eigenvectors. */

//.........这里部分代码省略.........
开发者ID:Jell,项目名称:image-recognition,代码行数:101,代码来源:cggevx.c

示例11: op


//.........这里部分代码省略.........
            = 1: A and B have common or very close eigenvalues; perturbed   
                 values were used to solve the equation (but the matrices   
                 A and B are unchanged).   

    =====================================================================   


       Decode and Test input parameters   

       Parameter adjustments */
    /* Table of constant values */
    static integer c__1 = 1;
    
    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, c_dim1, c_offset, i__1, i__2, 
	    i__3, i__4;
    real r__1, r__2;
    complex q__1, q__2, q__3, q__4;
    /* Builtin functions */
    double r_imag(complex *);
    void r_cnjg(complex *, complex *);
    /* Local variables */
    static real smin;
    static complex suml, sumr;
    static integer j, k, l;
    extern /* Complex */ VOID cdotc_(complex *, integer *, complex *, integer 
	    *, complex *, integer *);
    extern logical lsame_(char *, char *);
    extern /* Complex */ VOID cdotu_(complex *, integer *, complex *, integer 
	    *, complex *, integer *);
    static complex a11;
    static real db;
    extern /* Subroutine */ int slabad_(real *, real *);
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    static complex x11;
    extern /* Complex */ VOID cladiv_(complex *, complex *, complex *);
    static real scaloc;
    extern doublereal slamch_(char *);
    extern /* Subroutine */ int csscal_(integer *, real *, complex *, integer 
	    *), xerbla_(char *, integer *);
    static real bignum;
    static logical notrna, notrnb;
    static real smlnum, da11;
    static complex vec;
    static real dum[1], eps, sgn;
#define a_subscr(a_1,a_2) (a_2)*a_dim1 + a_1
#define a_ref(a_1,a_2) a[a_subscr(a_1,a_2)]
#define b_subscr(a_1,a_2) (a_2)*b_dim1 + a_1
#define b_ref(a_1,a_2) b[b_subscr(a_1,a_2)]
#define c___subscr(a_1,a_2) (a_2)*c_dim1 + a_1
#define c___ref(a_1,a_2) c__[c___subscr(a_1,a_2)]


    a_dim1 = *lda;
    a_offset = 1 + a_dim1 * 1;
    a -= a_offset;
    b_dim1 = *ldb;
    b_offset = 1 + b_dim1 * 1;
    b -= b_offset;
    c_dim1 = *ldc;
    c_offset = 1 + c_dim1 * 1;
    c__ -= c_offset;

    /* Function Body */
    notrna = lsame_(trana, "N");
开发者ID:EugeneGalipchak,项目名称:antelope_contrib,代码行数:67,代码来源:ctrsyl.c

示例12: eigenvalues


//.........这里部分代码省略.........

       Decode the input arguments   

       Parameter adjustments */
    /* Table of constant values */
    static complex c_b1 = {0.f,0.f};
    static complex c_b2 = {1.f,0.f};
    static integer c__1 = 1;
    static integer c_n1 = -1;
    static real c_b29 = 1.f;
    
    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, vl_dim1, vl_offset, vr_dim1, 
	    vr_offset, i__1, i__2, i__3, i__4;
    real r__1, r__2, r__3, r__4;
    complex q__1, q__2;
    /* Builtin functions */
    double r_imag(complex *);
    /* Local variables */
    static real absb, anrm, bnrm;
    static integer itau;
    static real temp;
    static logical ilvl, ilvr;
    static integer lopt;
    static real anrm1, anrm2, bnrm1, bnrm2, absai, scale, absar, sbeta;
    extern logical lsame_(char *, char *);
    static integer ileft, iinfo, icols, iwork, irows, jc;
    extern /* Subroutine */ int cggbak_(char *, char *, integer *, integer *, 
	    integer *, real *, real *, integer *, complex *, integer *, 
	    integer *), cggbal_(char *, integer *, complex *, 
	    integer *, complex *, integer *, integer *, integer *, real *, 
	    real *, real *, integer *);
    static integer nb, in;
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    static integer jr;
    extern /* Subroutine */ int cgghrd_(char *, char *, integer *, integer *, 
	    integer *, complex *, integer *, complex *, integer *, complex *, 
	    integer *, complex *, integer *, integer *);
    static real salfai;
    extern /* Subroutine */ int clascl_(char *, integer *, integer *, real *, 
	    real *, integer *, integer *, complex *, integer *, integer *), cgeqrf_(integer *, integer *, complex *, integer *, 
	    complex *, complex *, integer *, integer *);
    static real salfar;
    extern doublereal slamch_(char *);
    extern /* Subroutine */ int clacpy_(char *, integer *, integer *, complex 
	    *, integer *, complex *, integer *), claset_(char *, 
	    integer *, integer *, complex *, complex *, complex *, integer *);
    static real safmin;
    extern /* Subroutine */ int ctgevc_(char *, char *, logical *, integer *, 
	    complex *, integer *, complex *, integer *, complex *, integer *, 
	    complex *, integer *, integer *, integer *, complex *, real *, 
	    integer *);
    static real safmax;
    static char chtemp[1];
    static logical ldumma[1];
    extern /* Subroutine */ int chgeqz_(char *, char *, char *, integer *, 
	    integer *, integer *, complex *, integer *, complex *, integer *, 
	    complex *, complex *, complex *, integer *, complex *, integer *, 
	    complex *, integer *, real *, integer *), 
	    xerbla_(char *, integer *);
    extern integer ilaenv_(integer *, char *, char *, integer *, integer *, 
	    integer *, integer *, ftnlen, ftnlen);
    static integer ijobvl, iright;
    static logical ilimit;
    static integer ijobvr;
开发者ID:MichaelH13,项目名称:sdkpub,代码行数:67,代码来源:cgegv.c

示例13: cgemm_

/* Subroutine */ int cqrt16_(char *trans, integer *m, integer *n, integer *
	nrhs, complex *a, integer *lda, complex *x, integer *ldx, complex *b, 
	integer *ldb, real *rwork, real *resid)
{
    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, x_dim1, x_offset, i__1;
    real r__1, r__2;
    complex q__1;

    /* Local variables */
    static integer j;
    extern /* Subroutine */ int cgemm_(char *, char *, integer *, integer *, 
	    integer *, complex *, complex *, integer *, complex *, integer *, 
	    complex *, complex *, integer *);
    extern logical lsame_(char *, char *);
    static real anorm, bnorm;
    static integer n1, n2;
    static real xnorm;
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *), slamch_(char *), scasum_(
	    integer *, complex *, integer *);
    static real eps;


#define b_subscr(a_1,a_2) (a_2)*b_dim1 + a_1
#define b_ref(a_1,a_2) b[b_subscr(a_1,a_2)]
#define x_subscr(a_1,a_2) (a_2)*x_dim1 + a_1
#define x_ref(a_1,a_2) x[x_subscr(a_1,a_2)]


/*  -- LAPACK test routine (version 3.0) --   
       Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,   
       Courant Institute, Argonne National Lab, and Rice University   
       September 30, 1994   


    Purpose   
    =======   

    CQRT16 computes the residual for a solution of a system of linear   
    equations  A*x = b  or  A'*x = b:   
       RESID = norm(B - A*X) / ( max(m,n) * norm(A) * norm(X) * EPS ),   
    where EPS is the machine epsilon.   

    Arguments   
    =========   

    TRANS   (input) CHARACTER*1   
            Specifies the form of the system of equations:   
            = 'N':  A *x = b   
            = 'T':  A^T*x = b, where A^T is the transpose of A   
            = 'C':  A^H*x = b, where A^H is the conjugate transpose of A   

    M       (input) INTEGER   
            The number of rows of the matrix A.  M >= 0.   

    N       (input) INTEGER   
            The number of columns of the matrix A.  N >= 0.   

    NRHS    (input) INTEGER   
            The number of columns of B, the matrix of right hand sides.   
            NRHS >= 0.   

    A       (input) COMPLEX array, dimension (LDA,N)   
            The original M x N matrix A.   

    LDA     (input) INTEGER   
            The leading dimension of the array A.  LDA >= max(1,M).   

    X       (input) COMPLEX array, dimension (LDX,NRHS)   
            The computed solution vectors for the system of linear   
            equations.   

    LDX     (input) INTEGER   
            The leading dimension of the array X.  If TRANS = 'N',   
            LDX >= max(1,N); if TRANS = 'T' or 'C', LDX >= max(1,M).   

    B       (input/output) COMPLEX array, dimension (LDB,NRHS)   
            On entry, the right hand side vectors for the system of   
            linear equations.   
            On exit, B is overwritten with the difference B - A*X.   

    LDB     (input) INTEGER   
            The leading dimension of the array B.  IF TRANS = 'N',   
            LDB >= max(1,M); if TRANS = 'T' or 'C', LDB >= max(1,N).   

    RWORK   (workspace) REAL array, dimension (M)   

    RESID   (output) REAL   
            The maximum over the number of right hand sides of   
            norm(B - A*X) / ( max(m,n) * norm(A) * norm(X) * EPS ).   

    =====================================================================   


       Quick exit if M = 0 or N = 0 or NRHS = 0   

       Parameter adjustments */
    a_dim1 = *lda;
    a_offset = 1 + a_dim1 * 1;
//.........这里部分代码省略.........
开发者ID:zangel,项目名称:uquad,代码行数:101,代码来源:cqrt16.c

示例14: r_imag

/* Subroutine */ int cget52_(logical *left, integer *n, complex *a, integer *
	lda, complex *b, integer *ldb, complex *e, integer *lde, complex *
	alpha, complex *beta, complex *work, real *rwork, real *result)
{
    /* System generated locals */
    integer a_dim1, a_offset, b_dim1, b_offset, e_dim1, e_offset, i__1, i__2, 
	    i__3;
    real r__1, r__2, r__3, r__4, r__5, r__6;
    complex q__1;

    /* Builtin functions */
    double r_imag(complex *);
    void r_cnjg(complex *, complex *);

    /* Local variables */
    static integer jvec;
    static real temp1;
    static integer j;
    static complex betai;
    static real scale, abmax;
    extern /* Subroutine */ int cgemv_(char *, integer *, integer *, complex *
	    , complex *, integer *, complex *, integer *, complex *, complex *
	    , integer *);
    static real anorm, bnorm, enorm;
    static char trans[1];
    static complex acoeff, bcoeff;
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    static complex alphai;
    extern doublereal slamch_(char *);
    static real alfmax, safmin;
    static char normab[1];
    static real safmax, betmax, enrmer, errnrm, ulp;


#define e_subscr(a_1,a_2) (a_2)*e_dim1 + a_1
#define e_ref(a_1,a_2) e[e_subscr(a_1,a_2)]


/*  -- LAPACK test routine (version 3.0) --   
       Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,   
       Courant Institute, Argonne National Lab, and Rice University   
       September 30, 1994   


    Purpose   
    =======   

    CGET52  does an eigenvector check for the generalized eigenvalue   
    problem.   

    The basic test for right eigenvectors is:   

                              | b(i) A E(i) -  a(i) B E(i) |   
            RESULT(1) = max   -------------------------------   
                         i    n ulp max( |b(i) A|, |a(i) B| )   

    using the 1-norm.  Here, a(i)/b(i) = w is the i-th generalized   
    eigenvalue of A - w B, or, equivalently, b(i)/a(i) = m is the i-th   
    generalized eigenvalue of m A - B.   

                            H   H  _      _   
    For left eigenvectors, A , B , a, and b  are used.   

    CGET52 also tests the normalization of E.  Each eigenvector is   
    supposed to be normalized so that the maximum "absolute value"   
    of its elements is 1, where in this case, "absolute value"   
    of a complex value x is  |Re(x)| + |Im(x)| ; let us call this   
    maximum "absolute value" norm of a vector v  M(v).   
    if a(i)=b(i)=0, then the eigenvector is set to be the jth coordinate   
    vector. The normalization test is:   

            RESULT(2) =      max       | M(v(i)) - 1 | / ( n ulp )   
                       eigenvectors v(i)   

    Arguments   
    =========   

    LEFT    (input) LOGICAL   
            =.TRUE.:  The eigenvectors in the columns of E are assumed   
                      to be *left* eigenvectors.   
            =.FALSE.: The eigenvectors in the columns of E are assumed   
                      to be *right* eigenvectors.   

    N       (input) INTEGER   
            The size of the matrices.  If it is zero, CGET52 does   
            nothing.  It must be at least zero.   

    A       (input) COMPLEX array, dimension (LDA, N)   
            The matrix A.   

    LDA     (input) INTEGER   
            The leading dimension of A.  It must be at least 1   
            and at least N.   

    B       (input) COMPLEX array, dimension (LDB, N)   
            The matrix B.   

    LDB     (input) INTEGER   
            The leading dimension of B.  It must be at least 1   
//.........这里部分代码省略.........
开发者ID:zangel,项目名称:uquad,代码行数:101,代码来源:cget52.c

示例15: lsame_

/* Subroutine */ int cgesvx_(char *fact, char *trans, integer *n, integer *
	nrhs, complex *a, integer *lda, complex *af, integer *ldaf, integer *
	ipiv, char *equed, real *r__, real *c__, complex *b, integer *ldb, 
	complex *x, integer *ldx, real *rcond, real *ferr, real *berr, 
	complex *work, real *rwork, integer *info)
{
    /* System generated locals */
    integer a_dim1, a_offset, af_dim1, af_offset, b_dim1, b_offset, x_dim1, 
	    x_offset, i__1, i__2, i__3, i__4, i__5;
    real r__1, r__2;
    complex q__1;

    /* Local variables */
    integer i__, j;
    real amax;
    char norm[1];
    extern logical lsame_(char *, char *);
    real rcmin, rcmax, anorm;
    logical equil;
    extern doublereal clange_(char *, integer *, integer *, complex *, 
	    integer *, real *);
    extern /* Subroutine */ int claqge_(integer *, integer *, complex *, 
	    integer *, real *, real *, real *, real *, real *, char *)
	    , cgecon_(char *, integer *, complex *, integer *, real *, real *, 
	     complex *, real *, integer *);
    real colcnd;
    extern doublereal slamch_(char *);
    extern /* Subroutine */ int cgeequ_(integer *, integer *, complex *, 
	    integer *, real *, real *, real *, real *, real *, integer *);
    logical nofact;
    extern /* Subroutine */ int cgerfs_(char *, integer *, integer *, complex 
	    *, integer *, complex *, integer *, integer *, complex *, integer 
	    *, complex *, integer *, real *, real *, complex *, real *, 
	    integer *), cgetrf_(integer *, integer *, complex *, 
	    integer *, integer *, integer *), clacpy_(char *, integer *, 
	    integer *, complex *, integer *, complex *, integer *), 
	    xerbla_(char *, integer *);
    real bignum;
    extern doublereal clantr_(char *, char *, char *, integer *, integer *, 
	    complex *, integer *, real *);
    integer infequ;
    logical colequ;
    extern /* Subroutine */ int cgetrs_(char *, integer *, integer *, complex 
	    *, integer *, integer *, complex *, integer *, integer *);
    real rowcnd;
    logical notran;
    real smlnum;
    logical rowequ;
    real rpvgrw;


/*  -- LAPACK driver routine (version 3.2) -- */
/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/*     November 2006 */

/*     .. Scalar Arguments .. */
/*     .. */
/*     .. Array Arguments .. */
/*     .. */

/*  Purpose */
/*  ======= */

/*  CGESVX uses the LU factorization to compute the solution to a complex */
/*  system of linear equations */
/*     A * X = B, */
/*  where A is an N-by-N matrix and X and B are N-by-NRHS matrices. */

/*  Error bounds on the solution and a condition estimate are also */
/*  provided. */

/*  Description */
/*  =========== */

/*  The following steps are performed: */

/*  1. If FACT = 'E', real scaling factors are computed to equilibrate */
/*     the system: */
/*        TRANS = 'N':  diag(R)*A*diag(C)     *inv(diag(C))*X = diag(R)*B */
/*        TRANS = 'T': (diag(R)*A*diag(C))**T *inv(diag(R))*X = diag(C)*B */
/*        TRANS = 'C': (diag(R)*A*diag(C))**H *inv(diag(R))*X = diag(C)*B */
/*     Whether or not the system will be equilibrated depends on the */
/*     scaling of the matrix A, but if equilibration is used, A is */
/*     overwritten by diag(R)*A*diag(C) and B by diag(R)*B (if TRANS='N') */
/*     or diag(C)*B (if TRANS = 'T' or 'C'). */

/*  2. If FACT = 'N' or 'E', the LU decomposition is used to factor the */
/*     matrix A (after equilibration if FACT = 'E') as */
/*        A = P * L * U, */
/*     where P is a permutation matrix, L is a unit lower triangular */
/*     matrix, and U is upper triangular. */

/*  3. If some U(i,i)=0, so that U is exactly singular, then the routine */
/*     returns with INFO = i. Otherwise, the factored form of A is used */
/*     to estimate the condition number of the matrix A.  If the */
/*     reciprocal of the condition number is less than machine precision, */
/*     INFO = N+1 is returned as a warning, but the routine still goes on */
/*     to solve for X and compute error bounds as described below. */

/*  4. The system of equations is solved for X using the factored form */
//.........这里部分代码省略.........
开发者ID:3deggi,项目名称:levmar-ndk,代码行数:101,代码来源:cgesvx.c


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