90 + 360*k degrees anti-clockwise for any integer k.
Chat with our AI personalities
Minus 270 degrees which is equivalent to a quarter anti-clockwise turn, or +90 degrees.
270 rule represent a 270 rotation to the left which is very easy
The effect of the rotation is the same as that of a 90 degree clockwise rotation. In matrix notation, it is equivalent to [post-]multiplication by the 2x2 matrix: { 0 1 } {-1 0 }
Both will end up on the same place. Using a compass rose as an example: 270 clockwise will point to the west. 90 counterclockwise will also point west.
It is multiplication by the 2x2 matrix 0 1-1 0