uPdfMul function
Implementation
List<double> uPdfMul(List<double> m, List<double> n) => <double>[
m[0] * n[0] + m[1] * n[2],
m[0] * n[1] + m[1] * n[3],
m[2] * n[0] + m[3] * n[2],
m[2] * n[1] + m[3] * n[3],
m[4] * n[0] + m[5] * n[2] + n[4],
m[4] * n[1] + m[5] * n[3] + n[5],
];