bl_mcu_sdk/examples/dsp/FastMathFunctions_trigonometricPart/cos.c

13 lines
293 B
C

#include "ref.h"
q31_t ref_cos_q31(q31_t x)
{
return (q31_t)(cosf((float32_t)x * 6.28318530717959f / 2147483648.0f) *
2147483648.0f);
}
q15_t ref_cos_q15(q15_t x)
{
return (q15_t)(cosf((float32_t)x * 6.28318530717959f / 32768.0f) *
32768.0f);
}