Hi folk! Please help me in this problem.
I want to find INVERSE of a LOWER TRIANGULAR MATRIX.
I use function
This function is very good.
But because my matrix is very special, it is Lower Triangular Matrix. So I want to create a new function which is operate like LinearSolve. I call it NewLinearSolve which is will find Inverse of My Lower Triangular Matrix faster (it only focus on elements on the lower part).
I have tried Back/Forward Substitution Algorithm but it is very slow when m is large.
Also, I want new algorithm can solve a large lower triangular matrix.
Please help me solve.
Thanks very much