Yeah that is the way Sin and Cos go as you go from 0 upwards in degrees or Radians. Not like you learned in math but you need to know that to do Basic graphics with Basic Trig functions.
From the start on printouts Y, vertical measure and locating, advances downward not upward. Someone tried to fix that with Circle parameters beyond the radius, but made a mess with COS and SIN going the opposite direction.
From the start on printouts Y, vertical measure and locating, advances downward not upward. Someone tried to fix that with Circle parameters beyond the radius, but made a mess with COS and SIN going the opposite direction.
b = b + ...