90 clockwise rule
(x,y) →
(y,−x)
180 rule
(x,y) →
(−x,−y)
270 clockwise rule
(x,y) →
(−y,x)
90 cc rule
(x,y) →
(−y,x)
reflection over x-axis rule
(x,y) →
(x, -y)
reflection over y-axis rule
(x,y) →
(-x, y)
reflection in y=x
(x, y) →
(y, x)
reflection in y=-x
(x, y) →
(-y, -x)