| VF_cosec2 | VD_cosec2 | VE_cosec2 |
| VFx_cosec2 | VDx_cosec2 | VEx_cosec2 |
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| Function | Square of the cosecant function |
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| Syntax C/C++ | #include <VFmath.h>
int VF_cosec2( fVector Y, fVector X, ui size );
int VFx_cosec2( fVector Y, fVector X, ui size, float A, float B, float C ); |
| C++ VecObj | #include <OptiVec.h>
int vector<T>::cosec2( const vector<T>& X );
int vector<T>::x_cosec2( const vector<T>& X, const T& A, const T& B, const T& C ); |
| Pascal/Delphi | uses VFmath;
function VF_cosec2( Y, X:fVector; size:UIntSize ): IntBool;
function VFx_cosec2( Y, X:fVector; size:UIntSize; A, B, C:Single ): IntBool; |
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| Description | normal versions: Yi = cosec2 ( Xi )
expanded versions: Yi = C * cosec2 ( A*Xi + B )
Calculating the squared trigonometric functions directly is faster and sometimes more accurate than first calculating the trigonometric function itself and squaring it afterwards. |
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| Error handling | For SING, OVERFLOW, and TLOSS errors, the default result is ±HUGE_VAL. |
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| Return value | FALSE (0), if no error occurred, otherwise TRUE (non-zero). |
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