API Reference > geometry-core > CartesianGeometry > Matrix3d > inverse inverse Method return the inverse matrix. The return is undefined if the matrix is singular (has columns that are coplanar or colinear) inverse(result?: Matrix3d): Matrix3d | undefined Parameter Type Description result Matrix3d Returns - Matrix3d | undefined Defined in core/geometry/src/geometry3d/Matrix3d.ts Line 1736 Last Updated: 13 June, 2024