Shao Rui / test_motor_output_position

1

Dependencies:   mbed-dev-f303 FastPWM3

FastMath/FastMath.cpp@48:1b51771c3647, 2020-02-07 (annotated)

Committer:
shaorui
Date:
Fri Feb 07 11:31:37 2020 +0000
Revision:
48:1b51771c3647
Parent:
20:bf9ea5125d52 
test;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
benkatz 0:4e1c4df6aabd 1 #include "FastMath.h"
benkatz 0:4e1c4df6aabd 2 #include "LUT.h"
benkatz 0:4e1c4df6aabd 3
benkatz 0:4e1c4df6aabd 4 const float Multiplier = 81.4873308631f;
benkatz 0:4e1c4df6aabd 5
benkatz 0:4e1c4df6aabd 6 float FastMath::FastSin(float theta){
benkatz 20:bf9ea5125d52 7 while (theta < 0.0f) theta += 6.28318530718f;
benkatz 20:bf9ea5125d52 8 while (theta >= 6.28318530718f) theta -= 6.28318530718f;
benkatz 0:4e1c4df6aabd 9 return SinTable[(int) (Multiplier*theta)] ;
benkatz 0:4e1c4df6aabd 10 }
benkatz 0:4e1c4df6aabd 11
benkatz 0:4e1c4df6aabd 12 float FastMath::FastCos(float theta){
benkatz 0:4e1c4df6aabd 13 return FastSin(1.57079632679f - theta);
benkatz 0:4e1c4df6aabd 14 }