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Python _multiarray_tests.solve_diophantine方法代碼示例

本文整理匯總了Python中numpy.core._multiarray_tests.solve_diophantine方法的典型用法代碼示例。如果您正苦於以下問題:Python _multiarray_tests.solve_diophantine方法的具體用法?Python _multiarray_tests.solve_diophantine怎麽用?Python _multiarray_tests.solve_diophantine使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在numpy.core._multiarray_tests的用法示例。


在下文中一共展示了_multiarray_tests.solve_diophantine方法的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: test_internal_overlap_diophantine

# 需要導入模塊: from numpy.core import _multiarray_tests [as 別名]
# 或者: from numpy.core._multiarray_tests import solve_diophantine [as 別名]
def test_internal_overlap_diophantine():
    def check(A, U, exists=None):
        X = solve_diophantine(A, U, 0, require_ub_nontrivial=1)

        if exists is None:
            exists = (X is not None)

        if X is not None:
            assert_(sum(a*x for a, x in zip(A, X)) == sum(a*u//2 for a, u in zip(A, U)))
            assert_(all(0 <= x <= u for x, u in zip(X, U)))
            assert_(any(x != u//2 for x, u in zip(X, U)))

        if exists:
            assert_(X is not None, repr(X))
        else:
            assert_(X is None, repr(X))

    # Smoke tests
    check((3, 2), (2*2, 3*2), exists=True)
    check((3*2, 2), (15*2, (3-1)*2), exists=False) 
開發者ID:Frank-qlu,項目名稱:recruit,代碼行數:22,代碼來源:test_mem_overlap.py

示例2: test_diophantine_overflow

# 需要導入模塊: from numpy.core import _multiarray_tests [as 別名]
# 或者: from numpy.core._multiarray_tests import solve_diophantine [as 別名]
def test_diophantine_overflow():
    # Smoke test integer overflow detection
    max_intp = np.iinfo(np.intp).max
    max_int64 = np.iinfo(np.int64).max

    if max_int64 <= max_intp:
        # Check that the algorithm works internally in 128-bit;
        # solving this problem requires large intermediate numbers
        A = (max_int64//2, max_int64//2 - 10)
        U = (max_int64//2, max_int64//2 - 10)
        b = 2*(max_int64//2) - 10

        assert_equal(solve_diophantine(A, U, b), (1, 1)) 
開發者ID:Frank-qlu,項目名稱:recruit,代碼行數:15,代碼來源:test_mem_overlap.py


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