Hi,

I'd like help getting started writing my own routines to calculate sin and cos. But I really don't know where to begin..

This is what I know:

sin(x) = x (for very small x)

cos(x) = 1 (for very small x)

sin(x) = 2*sin(x/2)*cos(x/2)

cos(x) = (cos(x/2))^2 - (sin(x/2))^2 (where "^" means "power")

This is what I've done so far:

while (x >= 0.0001){ //first checks to see if x is really small

mysinx == 2*(x div 2) * mycosx(x/2);

}

while(x = 1){

mycos(x) == ((x/2))^2 - (mysinx(x/2))^2;

}

Thanks, Josh