math.h File Reference

#include <gnuradio/api.h>
#include <gnuradio/gr_complex.h>
#include <cmath>

Go to the source code of this file.

Namespaces
	gr
	GNU Radio logging wrapper for log4cpp library (C++ port of log4j)

Macros
#define	GR_M_LOG2E   1.4426950408889634074 /* log_2 e */
#define	GR_M_PI   3.14159265358979323846 /* pi */
#define	GR_M_PI_4   0.78539816339744830961566084582 /* pi/4 */
#define	GR_M_TWOPI   (2 * GR_M_PI) /* 2*pi */
#define	GR_M_SQRT2   1.41421356237309504880 /* sqrt(2) */

Functions
static bool	gr::is_power_of_2 (long x)
GR_RUNTIME_API float	gr::fast_atan2f (float y, float x)
	Fast arc tangent using table lookup and linear interpolation. More...
static float	gr::fast_atan2f (gr_complex z)
static float	gr::branchless_clip (float x, float clip)
static float	gr::clip (float x, float clip)
static unsigned int	gr::binary_slicer (float x)
static unsigned int	gr::quad_45deg_slicer (float r, float i)
static unsigned int	gr::quad_0deg_slicer (float r, float i)
static unsigned int	gr::quad_45deg_slicer (gr_complex x)
static unsigned int	gr::quad_0deg_slicer (gr_complex x)
static unsigned int	gr::branchless_binary_slicer (float x)
static unsigned int	gr::branchless_quad_0deg_slicer (float r, float i)
static unsigned int	gr::branchless_quad_0deg_slicer (gr_complex x)
static unsigned int	gr::branchless_quad_45deg_slicer (float r, float i)
static unsigned int	gr::branchless_quad_45deg_slicer (gr_complex x)
static size_t	gr::p2_round_down (size_t x, size_t pow2)
static size_t	gr::p2_round_up (size_t x, size_t pow2)
static size_t	gr::p2_modulo (size_t x, size_t pow2)
static size_t	gr::p2_modulo_neg (size_t x, size_t pow2)

Macro Definition Documentation

GR_M_LOG2E

#define GR_M_LOG2E   1.4426950408889634074 /* log_2 e */

GR_M_PI

#define GR_M_PI   3.14159265358979323846 /* pi */

Referenced by gr::nco< o_type, i_type >::step().

GR_M_PI_4

#define GR_M_PI_4   0.78539816339744830961566084582 /* pi/4 */

GR_M_SQRT2

#define GR_M_SQRT2   1.41421356237309504880 /* sqrt(2) */

GR_M_TWOPI

#define GR_M_TWOPI   (2 * GR_M_PI) /* 2*pi */