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gr::fxpt Class Reference
Miscellaneous

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

`#include <gnuradio/fxpt.h>`

## Static Public Member Functions

static int32_t | float_to_fixed (float x)
static float | fixed_to_float (int32_t x)
static float | sin (int32_t x)
| Given a fixed point angle x, return float sine (x).
static float | cos (int32_t x)
static void | sincos (int32_t x, float *s, float *c)

## Detailed Description

fixed point sine and cosine and friends.

fixed pt radians

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

## Member Function Documentation

## cos()

float gr::fxpt::cos | ( | int32_t | x | ) |

inline static

Referenced by gr::fxpt_nco::cos(), gr::fxpt_nco::cos(), gr::fxpt_nco::cos(), gr::fxpt_nco::cos(), gr::fxpt_nco::cos(), gr::fxpt_vco::cos(), gr::fxpt_vco::cos(), gr::fxpt_nco::sincos(), gr::fxpt_nco::sincos(), gr::fxpt_vco::sincos(), and gr::fxpt_vco::sincos().

## fixed_to_float()

float gr::fxpt::fixed_to_float | ( | int32_t | x | ) |

inline static

Referenced by gr::fxpt_nco::get_freq(), gr::fxpt_nco::get_phase(), and gr::fxpt_vco::get_phase().

## float_to_fixed()

int32_t gr::fxpt::float_to_fixed | ( | float | x | ) |

inline static

Referenced by gr::fxpt_nco::adjust_freq(), gr::fxpt_nco::adjust_phase(), gr::fxpt_vco::adjust_phase(), gr::fxpt_nco::set_freq(), gr::fxpt_nco::set_phase(), and gr::fxpt_vco::set_phase().

## sin()

float gr::fxpt::sin | ( | int32_t | x | ) |

inline static

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

Referenced by gr::fxpt_nco::sin(), gr::fxpt_nco::sin(), gr::fxpt_nco::sin(), gr::fxpt_nco::sin(), gr::fxpt_nco::sin(), gr::fxpt_vco::sin(), gr::fxpt_nco::sincos(), gr::fxpt_nco::sincos(), gr::fxpt_vco::sincos(), and gr::fxpt_vco::sincos().

## sincos()

void gr::fxpt::sincos | ( | int32_t | x,
|  | float * | s,
|  | float * | c )

inline static

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

- fxpt.h