lut_trig.h File Reference

Fast lookup-table trigonometric sine approximation routines. More...

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Functions
int16_t	sofm_lut_sin_fixed_16b (int32_t w)
	Fast lookup-table 16-bit fixed-point sine approximation.

Detailed Description

Fast lookup-table trigonometric sine approximation routines.

Function Documentation

sofm_lut_sin_fixed_16b()

int16_t sofm_lut_sin_fixed_16b

(

int32_t

w

)

Fast lookup-table 16-bit fixed-point sine approximation.

Parameters

w	Input phase angle in radians formatted as Q4.28.

Returns

Sine approximation in Q1.15 format.