API Reference > geometry-core > CartesianGeometry > Matrix3d > multiplyInverseXYZW multiplyInverseXYZW Method multiply matrixInverse * [x,y,z] Equivalent to solving matrix * result = [x,y,z] return as a Point4d with the same weight. Called by Transform with x,y,z adjusted by subtraction ((xw) - w * origin.x, etc) where xw is the pre-weighted space point. multiplyInverseXYZW(x: number, y: number, z: number, w: number, result?: Point4d): Point4d | undefined Parameter Type Description x number y number z number w number result Point4d Returns - Point4d | undefined Defined in core/geometry/src/geometry3d/Matrix3d.ts Line 1569 Last Updated: 13 June, 2024