If I have a point on a standard grid with coordinates say:
Is there a easy way to transfer this points to $\pm 120$ degrees from the origin $(0,0)$, and keeping the same distance? So for $A_1$, the result should be something like: $B_1=(800,-200);\ C_1=(800,-200)$
I can make this with triangles and calculate it but there should be some formula. I need a formula to use with software.