gr_fxpt Class Reference

fixed point sine and cosine and friends.fixed pt radians More...

#include <gr_fxpt.h>

List of all members.

Static Public Member Functions
static gr_int32	float_to_fixed (float x)
static float	fixed_to_float (gr_int32 x)
static float	sin (gr_int32 x)
	Given a fixed point angle x, return float sine (x)
static float	cos (gr_int32 x)
static void	sincos (gr_int32 x, float *s, float *c)

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Detailed Description

fixed point sine and cosine and friends.

fixed pt radians

--------- -------- -2**31 -pi 0 0 2**31-1 pi - epsilon

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Member Function Documentation

static float gr_fxpt::cos

(

gr_int32

x

)

[inline, static]

Referenced by gr_fxpt_vco::cos(), gr_fxpt_nco::cos(), gr_fxpt_vco::sincos(), and gr_fxpt_nco::sincos().

static float gr_fxpt::fixed_to_float

(

gr_int32

x

)

[inline, static]

References PI.

Referenced by gr_fxpt_nco::get_freq(), gr_fxpt_vco::get_phase(), and gr_fxpt_nco::get_phase().

static gr_int32 gr_fxpt::float_to_fixed

(

float

x

)

[inline, static]

References PI.

Referenced by gr_fxpt_nco::adjust_freq(), gr_fxpt_vco::adjust_phase(), gr_fxpt_nco::adjust_phase(), gr_fxpt_nco::set_freq(), gr_fxpt_vco::set_phase(), and gr_fxpt_nco::set_phase().

static float gr_fxpt::sin

(

gr_int32

x

)

[inline, static]

Given a fixed point angle x, return float sine (x)

Referenced by gr_fxpt_vco::sin(), gr_fxpt_nco::sin(), gr_fxpt_vco::sincos(), and gr_fxpt_nco::sincos().

static void gr_fxpt::sincos	(	gr_int32	x,
		float *	s,
		float *	c
	)		[inline, static]

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The documentation for this class was generated from the following file:

• gr_fxpt.h