Matrix3d

constructor(x1y1: Double = 1.0, x2y1: Double = 0.0, x3y1: Double = 0.0, x4y1: Double = 0.0, x1y2: Double = 0.0, x2y2: Double = 1.0, x3y2: Double = 0.0, x4y2: Double = 0.0, x1y3: Double = 0.0, x2y3: Double = 0.0, x3y3: Double = 1.0, x4y3: Double = 0.0)