API Reference > geometry-core > CartesianGeometry > Matrix3d > multiplyInverseXYZW multiplyInverseXYZW Method multiply matrixInverse * [x,y,z] and return packaged as Point4d with given weight. 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): undefined | Point4d Parameter Type Description x number y number z number w number result Point4d Returns - undefined | Point4d Defined in geometry3d/Matrix3d.ts Line 1711 Last Updated: 11 June, 2024