Recent content by jerryd

  1. J

    MHB Where does radius sin angle sin rotation come from?

    Thanks for the reply. The link to Wiki answered everything. Jerry D.
  2. J

    MHB Where does radius sin angle sin rotation come from?

    For calculating a new "x" point of rotation I found the formula: x' = radius * cos(angle + -rotation) which converts to: x' = radius cos angle cos rotation - radius sin angle sin rotation Where does "radius sin angle sin rotation" come from? Jerry D.