Opposite Angles

[King_Samuel]

Does anybody know how of a way to find out the opposite angle of a radian. I have thought of converting the radian into degrees, and 180 then converting it back to radians. This method doesn't seem to be to clean, has anybody got a better method?

Cheers

[Laguana]

What do you mean by opposite? Do you mean it's supplement or complement, or something else?

[Eliseo]

King_Samuels, an angle in radians is the same that an angle in degrees. Only remember that Math.PI radians=180 degrees so, if we are using degrees add or less 180 (or 90 or...) if we are using radians add or less Math.PI (or MAth.PI/2 or....)

angle_degrees=90-angle_degrees_original
angle_degrees=180-angle_degrees_original

//ór
angle_radians=Math.PI/2-angle_radians_original
angle_radians=Math.PI-angle_radians_original

[King_Samuel]

Thanks very much.