at4);dmat2x3 transpose(dmat3x2);dmat3x2 transpose(dmat2x3);dmat2x4 transpose(dmat4x2);dmat4x2 transpose(dmat2x4);dmat3x4 transpose(dmat4x3);dmat4x3 transpose(dmat3x4);double determinant(dmat2);double determinant(dmat3);double determinant(dmat4);dmat2 inverse(dmat2);dmat3 inverse(dmat3);dmat4 inverse(dmat4);