CMSIS-DSP  
CMSIS DSP Software Library
Fast Math Functions

Content

 ArcTan2
 
 Cosine
 
 Fixed point division
 
 Sine
 
 Vector Exponential
 
 Vector Log
 
 Square Root
 

Description

This set of functions provides a fast approximation to sine, cosine, and square root. As compared to most of the other functions in the CMSIS math library, the fast math functions operate on individual values and not arrays. There are separate functions for Q15, Q31, and floating-point data.