Module fast_math 

Fast math functions (sin, cos, sin_cos, sqrt, vsqrt, divide, log, exp, atan2).

Functions

atan2_f32

Floating-point arc-tangent 2.

atan2_q15

Q15 arc-tangent 2. Result is atan2(y, x) / π in Q1.15.

atan2_q31

Q31 arc-tangent 2. Result is atan2(y, x) / π in Q1.31 ([-1, 1)).

cos_f32

Floating-point cosine calculation.

cos_q31

Q31 cosine function.

divide_q15

Fixed-point division for Q15 types (numerator / denominator).

divide_q31

Fixed-point division for Q31 types (numerator / denominator).

exp_f32

Floating-point exponential.

log_f32

Floating-point natural logarithm.

sin_cos_f32

Floating-point sine and cosine calculation.

sin_cos_q31

Q31 sine and cosine. theta is in CMSIS units: [-1, 1) → [-π, π).

sin_f32

Floating-point sine calculation.

sin_q31

Q31 sine function.

sqrt_f32

Floating-point square root function.

sqrt_q15

Q15 square root (sqrt(x / 2^15) * 2^15).

sqrt_q31

Q31 square root (sqrt(x / 2^31) * 2^31).

vsqrt_f32

Vector square root function.