Originally Posted by
questforknowledge004 I will try to explain. Please forgive misuse of terms. I am working on a drawing program using Macromedia Flash. I believe the Flash uses Cartesian turning clockwise. I am working with x,y coordinates on a unit circle. x1, y1 (center point) and x2, y2 (outer point) are known values. How do I calculate the radians or degrees for the angle created by these two points??
for example:
x1 = 100
y1 = 100
x2 = 300
y2 = 300
Angle is 45 degrees.
x1 = 100
y1 = 100
x2 = 100
y2 = 0
Angle is 270 degrees.
I just don't know how to calculate the value mathmatically. Result in radians or degrees should work for me.
Thanks