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| Function | Hyperbolic secant function |
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| Syntax C/C++ | #include <VFmath.h>
int VF_sech( fVector Y, fVector X, ui size );
int VFx_sech( fVector Y, fVector X, ui size, float A, float B, float C ); |
| C++ VecObj | #include <OptiVec.h>
int vector<T>::sech( const vector<T>& X );
int vector<T>::x_sech( const vector<T>& X, const T& A, const T& B, const T& C ); |
| Pascal/Delphi | uses VFmath;
function VF_sech( Y, X:fVector; size:UIntSize ): IntBool;
function VFx_sech( Y, X:fVector; size:UIntSize; A, B, C:Single ): IntBool; |
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| CUDA function C/C++ | #include <cudaVFmath.h>
int cudaVF_sech( fVector d_Y, fVector d_X, ui size );
int cudaVFx_sech( fVector d_Y, fVector d_X, ui size, float A, float B, float C );
int cusdVFx_sech( fVector d_Y, fVector d_X, ui size, float *d_A, float *d_B, float *d_C );
int VFcu_sech( fVector h_Y, fVector h_X, ui size );
int VFxcu_sech( fVector h_Y, fVector h_X, ui size, float A, float B, float C );
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| CUDA function Pascal/Delphi | uses VFmath;
function cudaVF_sech( d_Y, d_X:fVector; size:UIntSize ): IntBool;
function cudaVFx_sech( d_Y, d_X:fVector; size:UIntSize; A, B, C:Single ): IntBool;
function cusdVFx_sech( d_Y, d_X:fVector; size:UIntSize; d_A, d_B, d_C:PSingle ): IntBool;
function VFcu_sech( h_Y, h_X:fVector; size:UIntSize ): IntBool;
function VFxcu_sech( h_Y, h_X:fVector; size:UIntSize; A, B, C:Single ): IntBool;
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| Description | simple versions:
Yi = sech( Xi )
= 2 / (exp( Xi ) + exp( −Xi ))
expanded versions:
Yi = C * sech( A*Xi+B ) |
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| Error handling | These functions should be error-proof. |
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| Return value | always FALSE (0) |
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