Barton Dring / Hobbyking_Cheetah_Compact_DRV8323

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Dependencies:   mbed-dev-f303 FastPWM3

FastMath/FastMath.cpp

Committer:
benkatz
Date:
2016-02-05
Revision:
0:4e1c4df6aabd
Child:
20:bf9ea5125d52

File content as of revision 0:4e1c4df6aabd:

#include "FastMath.h"
#include "LUT.h"

const float Multiplier = 81.4873308631f;

float FastMath::FastSin(float theta){
    if (theta < 0.0f) theta += 6.28318530718f;
    if (theta >= 6.28318530718f) theta -= 6.28318530718f;    
    return SinTable[(int) (Multiplier*theta)] ;
    }
    
float FastMath::FastCos(float theta){
    return FastSin(1.57079632679f - theta);
    }