API Reference > geometry-core > CartesianGeometry > Matrix3d > multiplyMatrixMatrixTranspose multiplyMatrixMatrixTranspose Method Multiply this matrix times the transpose of matrixB. for instance matrix A and other matrix B return matrix Cwhere[Cxx Cxy CxzCyx Cyy CyzCzx Czy Czz]=[Axx Axy AxzAyx Ayy AyzAzx Azy Azz][Bxx Byx BzxBxy Byy BzyBxz Byz Bzz]\text{for instance matrix }A\text{ and other matrix }B\text{ return matrix }C{\text where }\\\matrixXY{C}=\matrixXY{A}\matrixTransposeSubXY{B}for instance matrix A and other matrix B return matrix Cwhere⎣⎢⎡Cxx Cxy CxzCyx Cyy CyzCzx Czy Czz⎦⎥⎤=⎣⎢⎡Axx Axy AxzAyx Ayy AyzAzx Azy Azz⎦⎥⎤⎣⎢⎡Bxx Byx BzxBxy Byy BzyBxz Byz Bzz⎦⎥⎤ multiplyMatrixMatrixTranspose(matrixB: Matrix3d, result?: Matrix3d): Matrix3d Parameter Type Description matrixB Matrix3d result Matrix3d Returns - Matrix3d the matrix result Defined in geometry3d/Matrix3d.ts Line 1817 Last Updated: 12 June, 2024