Rotation

Subject: Optional Maths

Coming Soon

Rotation through 90° in an anti-clockwise direction about the centre at the origin (Positive Quater Turn) = P(x, y) → P'(−y, x)
Rotation through 90^o in a clockwise direction about the centre at the origin (Negative Quarter Turn) = P(x, y) → P'(y, −x)
Rotation through 180° about the centre at the origin (Half Turn) = P(x, y) → P'(−x, −y)