search for: slopenorm

Displaying 1 result from an estimated 1 matches for "slopenorm".

2010 Aug 23
4
Draw a perpendicular line?
Hi, I am trying to draw a perpendicular line from a point to two points. Mathematically I know how to do it, but to program it, I encounter some problem and hope can get help. Thanks. I have points, A, B and C. I calculate the slope and intercept for line drawn between A and B. I am trying to check whether I can draw a perpendicular line from C to line AB and get the x,y value for the point D