API Reference > geometry-core > CartesianGeometry > Matrix3d > multiplyInverse multiplyInverse Method Solve matrix * result = vector. This is equivalent to multiplication result = matrixInverse * vector. Result is undefined if the matrix is singular (e.g. has parallel or zero length columns) multiplyInverse(vector: Vector3d, result?: Vector3d): undefined | Vector3d Parameter Type Description vector Vector3d result Vector3d Returns - undefined | Vector3d Defined in geometry3d/Matrix3d.ts Line 1654 Last Updated: 11 June, 2024