forget about what I said. the shorten does not work... sorry, it's just too late to think clear :) we add start after we multiplied, so that just works how it is. and i checked the M_PI constant. you don't use it that often and only once multiplied by 2.
forget about what I said. the shorten does not work... sorry, it's just too late to think clear :) we add start after we multiplied, so that just works how it is. and i checked the M_PI constant. you don't use it that often and only once multiplied by 2.