Constants


Detailed Description

This group regroups all the constants you can use in your project.


Defines

#define CST_E   2.718281828459045235360287471352662497757
 E definition also known as the natural logarithmic base.
#define CST_INV_SQUARE_ROOT_2   0.70710678118654752440084436210485
 1/sqrt(2) definition
#define CST_LN_10   2.3025850929940456840179914546844
 ln(10) definition
#define CST_LN_2   0.69314718055994530941723212145818
 ln(2) definition
#define CST_PI   3.141592653589793238462643383279502884197
 PI definition also known as the Archimedes' constant.
#define CST_SQUARE_ROOT_2   1.4142135623730950488016887242097
 sqrt(2) definition
#define DSP16_PI_DIV_4   DSP16_Q(CST_PI/4.)
 PI/4 definition for the 16-bit fixed point type.
#define DSP32_PI_DIV_4   DSP32_Q(CST_PI/4.)
 PI/4 definition for the 32-bit fixed point type.
#define FALSE   0
 Boolean FALSE constant.
#define TRUE   1
 Boolean TRUE constant.


Define Documentation

#define CST_E   2.718281828459045235360287471352662497757

E definition also known as the natural logarithmic base.

Definition at line 327 of file dsp_types.h.

#define CST_INV_SQUARE_ROOT_2   0.70710678118654752440084436210485

1/sqrt(2) definition

Definition at line 336 of file dsp_types.h.

Referenced by dsp16_op_exp(), dsp16_op_sqrt(), dsp32_op_exp(), and dsp32_op_sqrt().

#define CST_LN_10   2.3025850929940456840179914546844

ln(10) definition

Definition at line 344 of file dsp_types.h.

Referenced by dsp16_op_log10(), and dsp32_op_log10().

#define CST_LN_2   0.69314718055994530941723212145818

#define CST_PI   3.141592653589793238462643383279502884197

PI definition also known as the Archimedes' constant.

Definition at line 323 of file dsp_types.h.

Referenced by dsp16_filt_lpfirdesign(), dsp16_win_kaiser(), and dsp32_win_kaiser().

#define CST_SQUARE_ROOT_2   1.4142135623730950488016887242097

sqrt(2) definition

Definition at line 332 of file dsp_types.h.

Referenced by dsp16_op_exp(), and dsp32_op_exp().

#define DSP16_PI_DIV_4   DSP16_Q(CST_PI/4.)

PI/4 definition for the 16-bit fixed point type.

Definition at line 349 of file dsp_types.h.

#define DSP32_PI_DIV_4   DSP32_Q(CST_PI/4.)

PI/4 definition for the 32-bit fixed point type.

Definition at line 353 of file dsp_types.h.

#define FALSE   0

#define TRUE   1


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