dos33fsprogs/gr-sim/mode7_demo/lookup_tables.c

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#include <stdio.h>
#include <math.h>
#define ANGLE_STEPS 16
int main(int argc, char **argv) {
double angle;
int i;
printf("Sin\n");
for(i=0;i<ANGLE_STEPS;i++) {
angle=3.1415926535897932384*2.0*((double)i/(double)ANGLE_STEPS);
printf("%d %lf\n",i,sin(angle));
}
printf("Cos\n");
for(i=0;i<ANGLE_STEPS;i++) {
angle=3.1415926535897932384*2.0*((double)i/(double)ANGLE_STEPS);
printf("%d %lf\n",i,cos(angle));
}
return 0;
}