## Matrix22 Stability: 0 (Anything could happen) 2x2 matrix used for rotations 2D represented as a 5 coordinates array [m11:Number, m12:Number, m21:Number, m22:Number, angle:Number] Can be used to solve 2x2 matrices problems. *todo*: this need more work and testing... * **create** (*angle*: Number): Matrix22 * **fromAngle** (*angle*: Number): Matrix22 * **fromNumbers** (*m11*: Number, *m12*: Number, *m21*: Number, *m22*: Number): Matrix22 * **zero** (): Matrix22 * **identity** (): Matrix22 * **copy** (*out*: Matrix22, *mat22*: Matrix22): Matrix22 * **solve** (*out_vec2*: Vec2, *mat22*: Matrix22, *vec2*: Vec2): Vec2 Solve A * x = b * **determinant** (*mat22*: Matrix22): Number * **setRotation** (*out*: Matrix22, *radians*: Number (Radians)): Matrix22 * **rotate** (*out_vec2*: Vec2, *mat22*: Matrix22, *vec2*: Vec2): Vec2 * **unrotate** (*out_vec2*: Vec2, *mat22*: Matrix22, *vec2*: Vec2): Vec2 * **invert** (*out*: Matrix22, *mat22*: Matrix22): Matrix22