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C++ AD类代码示例

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


在下文中一共展示了AD类的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: bug_1222

double bug_1222() {
  typedef Eigen::AutoDiffScalar<Eigen::Vector3d> AD;
  const double _cv1_3 = 1.0;
  const AD chi_3 = 1.0;
  // this line did not work, because operator+ returns ADS<DerType&>, which then cannot be converted to ADS<DerType>
  const AD denom = chi_3 + _cv1_3;
  return denom.value();
}
开发者ID:SimoneRinco，项目名称:Finite-Volumes-Immersed-Boundary-Methods，代码行数:8，代码来源:autodiff.cpp

示例2: test_autodiff_scalar

void test_autodiff_scalar()
{
  Vector2f p = Vector2f::Random();
  typedef AutoDiffScalar<Vector2f> AD;
  AD ax(p.x(),Vector2f::UnitX());
  AD ay(p.y(),Vector2f::UnitY());
  AD res = foo<AD>(ax,ay);
  VERIFY_IS_APPROX(res.value(), foo(p.x(),p.y()));
}
开发者ID:SimoneRinco，项目名称:Finite-Volumes-Immersed-Boundary-Methods，代码行数:9，代码来源:autodiff.cpp

示例3: bug_1261

// check a compilation issue with numext::max
double bug_1261() {
  typedef AutoDiffScalar<Matrix2d> AD;
  typedef Matrix<AD,2,1> VectorAD;

  VectorAD v(0.,0.);
  const AD maxVal = v.maxCoeff();
  const AD minVal = v.minCoeff();
  return maxVal.value() + minVal.value();
}
开发者ID:SimoneRinco，项目名称:Finite-Volumes-Immersed-Boundary-Methods，代码行数:10，代码来源:autodiff.cpp

示例4: test_autodiff_scalar

void test_autodiff_scalar()
{
    std::cerr << foo<float>(1,2) << "\n";
    typedef AutoDiffScalar<Vector2f> AD;
    AD ax(1,Vector2f::UnitX());
    AD ay(2,Vector2f::UnitY());
    AD res = foo<AD>(ax,ay);
    std::cerr << res.value() << " <> "
              << res.derivatives().transpose() << "\n\n";
}
开发者ID:logtcn，项目名称:eigen，代码行数:10，代码来源:autodiff.cpp

示例5: test_autodiff_vector

void test_autodiff_vector()
{
  Vector2f p = Vector2f::Random();
  typedef AutoDiffScalar<Vector2f> AD;
  typedef Matrix<AD,2,1> VectorAD;
  VectorAD ap = p.cast<AD>();
  ap.x().derivatives() = Vector2f::UnitX();
  ap.y().derivatives() = Vector2f::UnitY();

  AD res = foo<VectorAD>(ap);
  VERIFY_IS_APPROX(res.value(), foo(p));
}
开发者ID:SimoneRinco，项目名称:Finite-Volumes-Immersed-Boundary-Methods，代码行数:12，代码来源:autodiff.cpp

示例6: test_autodiff_vector

void test_autodiff_vector()
{
    std::cerr << foo<Vector2f>(Vector2f(1,2)) << "\n";
    typedef AutoDiffScalar<Vector2f> AD;
    typedef Matrix<AD,2,1> VectorAD;
    VectorAD p(AD(1),AD(-1));
    p.x().derivatives() = Vector2f::UnitX();
    p.y().derivatives() = Vector2f::UnitY();

    AD res = foo<VectorAD>(p);
    std::cerr << res.value() << " <> "
              << res.derivatives().transpose() << "\n\n";
}
开发者ID:logtcn，项目名称:eigen，代码行数:13，代码来源:autodiff.cpp

示例7: if

CPPAD_INLINE bool operator != (const AD<Base> &left , const AD<Base> &right)
{	bool result =  (left.value_ != right.value_);

	ADTape<Base> *tape = CPPAD_NULL;
	if( Variable(left) )
		tape = left.tape_this();
	else if ( Variable(right) )
		tape = right.tape_this();

	if( tape != CPPAD_NULL )
		tape->RecordCompare(CompareNe, result, left, right);

	return result;
}
开发者ID:jnorthrup，项目名称:jmodelica，代码行数:14，代码来源:compare.hpp

示例8: collectData

UINT RandomWalk::collectData(LPVOID lparam){
	AD obj;
	while(TRUE){
		obj.readData();
		obj.getDistance(arrayDistance, 8);
		for(int i=0; i< 8; i++){
			if(arrayDistance[i] <= 5.0){
				SetEvent(hSysStatus);
				continue;
			}
		}
		obj.getVoltage(arrayVoltage, 2);
	}
	return 0;
}
开发者ID:tianxingjianmj，项目名称:MJ_code_home，代码行数:15，代码来源:RandomWalk.cpp

示例9: check_atan2

template<typename Scalar> void check_atan2()
{
  typedef Matrix<Scalar, 1, 1> Deriv1;
  typedef AutoDiffScalar<Deriv1> AD;
  
  AD x(internal::random<Scalar>(-3.0, 3.0), Deriv1::UnitX());
  
  using std::exp;
  Scalar r = exp(internal::random<Scalar>(-10, 10));
  
  AD s = sin(x), c = cos(x);
  AD res = atan2(r*s, r*c);
  
  VERIFY_IS_APPROX(res.value(), x.value());
  VERIFY_IS_APPROX(res.derivatives(), x.derivatives());
}
开发者ID:1292765944，项目名称:caffe2，代码行数:16，代码来源:autodiff_scalar.cpp

示例10: bug_1223

double bug_1223() {
  using std::min;
  typedef Eigen::AutoDiffScalar<Eigen::Vector3d> AD;

  const double _cv1_3 = 1.0;
  const AD chi_3 = 1.0;
  const AD denom = 1.0;

  // failed because implementation of min attempts to construct ADS<DerType&> via constructor AutoDiffScalar(const Real& value)
  // without initializing m_derivatives (which is a reference in this case)
  #define EIGEN_TEST_SPACE
  const AD t = min EIGEN_TEST_SPACE (denom / chi_3, 1.0);

  const AD t2 = min EIGEN_TEST_SPACE (denom / (chi_3 * _cv1_3), 1.0);

  return t.value() + t2.value();
}
开发者ID:SimoneRinco，项目名称:Finite-Volumes-Immersed-Boundary-Methods，代码行数:17，代码来源:autodiff.cpp

示例11: Variable

CPPAD_INLINE_FRIEND_TEMPLATE_FUNCTION
bool operator >= (const AD<Base> &left , const AD<Base> &right)
{	bool result    =  (left.value_ >= right.value_);
	bool var_left  = Variable(left);
	bool var_right = Variable(right);

	ADTape<Base> *tape = CPPAD_NULL;
	if( var_left )
	{	tape = left.tape_this();
		if( var_right )
		{	if( result )
			{	tape->Rec_.PutOp(LevvOp);
				tape->Rec_.PutArg(right.taddr_, left.taddr_);
			}
			else
			{	tape->Rec_.PutOp(LtvvOp);
				tape->Rec_.PutArg(left.taddr_, right.taddr_);
			}
		}
		else
		{	addr_t arg1 = tape->Rec_.PutPar(right.value_);
			if( result )
			{	tape->Rec_.PutOp(LepvOp);
				tape->Rec_.PutArg(arg1, left.taddr_);
			}
			else
			{	tape->Rec_.PutOp(LtvpOp);
				tape->Rec_.PutArg(left.taddr_, arg1);
			}
		}
	}
	else if ( var_right )
	{	tape = right.tape_this();
		addr_t arg0 = tape->Rec_.PutPar(left.value_);
		if( result )
		{	tape->Rec_.PutOp(LevpOp);
			tape->Rec_.PutArg(right.taddr_, arg0);
		}
		else
		{	tape->Rec_.PutOp(LtpvOp);
			tape->Rec_.PutArg(arg0, right.taddr_);
		}
	}

	return result;
}
开发者ID:jonathancurrie，项目名称:OPTI，代码行数:46，代码来源:compare.hpp

示例12: Eval

	// used during the recording process
	AD<Base> Eval(const AD<Base> &x) const
	{	AD<Base> z;

		z.value_ = f(x.value_);
		if( Variable(x) )
		{	x.tape_this()->RecordDisOp(
				z,
				x.taddr_,
				y_taddr
			);
		}
		return z;
	}
开发者ID:cran，项目名称:RMC，代码行数:14，代码来源:discrete.hpp

示例13: Variable

CPPAD_INLINE_FRIEND_TEMPLATE_FUNCTION
bool operator != (const AD<Base> &left , const AD<Base> &right)
{	bool result    =  (left.value_ != right.value_);
	bool var_left  = Variable(left);
	bool var_right = Variable(right);

	local::ADTape<Base> *tape = CPPAD_NULL;
	if( var_left )
	{	tape = left.tape_this();
		if( var_right )
		{	tape->Rec_.PutArg(left.taddr_, right.taddr_);
			if( result )
				tape->Rec_.PutOp(local::NevvOp);
			else
				tape->Rec_.PutOp(local::EqvvOp);
		}
		else
		{	addr_t arg1 = tape->Rec_.PutPar(right.value_);
			tape->Rec_.PutArg(arg1, left.taddr_);
			if( result )
				tape->Rec_.PutOp(local::NepvOp);
			else
				tape->Rec_.PutOp(local::EqpvOp);
		}
	}
	else if ( var_right )
	{	tape = right.tape_this();
		addr_t arg0 = tape->Rec_.PutPar(left.value_);
		tape->Rec_.PutArg(arg0, right.taddr_);
		if( result )
			tape->Rec_.PutOp(local::NepvOp);
		else
			tape->Rec_.PutOp(local::EqpvOp);
	}

	return result;
}
开发者ID:iagomosqueira，项目名称:FLasher，代码行数:37，代码来源:compare.hpp

示例14: audioCallBack

// DO NOT MODIFY THE AUDIO CALLBACK FUNCTION 
void audioCallBack(AudioIOData& io)
{
	while(io()) 
	{
		if(tmr()) env.reset();	// Reset AD envelope
		
		input = white() * env(); // Apply envelope to white noise 
		roomReverb(input, output, decayTime); // Apply reverb

		for (int i = 0; i < channelsOut; i++) 
		{
			io.out(i) = ( (1.0 - dryWet) * input + dryWet * output ) * level; 
		}
	} 
}
开发者ID:akshay1992，项目名称:240D，代码行数:16，代码来源:Reverb_L.cpp

示例15: log

AD<T> log(const AD<T>& x){
  AD<T> newAD;
  ADnode<T>* orx = x.getRoot();
  newAD.setRoot(new ADlog<T>(orx));
  return newAD;
}
开发者ID:calbertsen，项目名称:otoclass，代码行数:6，代码来源:ADlog.hpp


注：本文中的AD类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。