Arctan

Arc Tangent

Supported Technologies

MT, SSE2

Synopsis

FwStatus   fwsArctan_32f ( const Fw32f * pSrc, Fw32f * pDst, int len );
FwStatus   fwsArctan_64f ( const Fw64f * pSrc, Fw64f * pDst, int len );
FwStatus   fwsArctan_32f_I ( Fw32f * pSrcDst, int len );
FwStatus   fwsArctan_64f_I ( Fw64f * pSrcDst, int len );

Parameters

len   Specifies the number of elements in a buffer.
pDst   Pointer to a destination buffer.
pSrc   Pointer to a source buffer.
pSrcDst   Pointer to a buffer that is both the source and destination.

Description

These functions step through vector elements in a source buffer and calculate the inverse tangent of each element.

Results can be written to a destination buffer or written back to the source buffer.