How to turn 90 degrees to the left or right from given point (x,y) ?

1 Like

(-y,x) for 90 clockwise
(y,-x) for 90 anticlockwise
In general for change in angle \theta clockwise
(xcos\theta -ysin\theta, ycos\theta + xsin\theta)

2 Likes

Nice post ,… Thanx for creating

1 Like