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Student Support Forum: 'Inverse of Triangular Matrix' topicStudent Support Forum > General > Archives > "Inverse of Triangular Matrix"

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Jessica
05/04/12 03:59am

Hi folk! Please help me in this problem.
I want to find INVERSE of a LOWER TRIANGULAR MATRIX.
I use function
LinearSolve[MyLowerTriangularMatrix, Identity[m]]
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
Sincerely yours

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Subject (listing for 'Inverse of Triangular Matrix')
Author Date Posted
Inverse of Triangular Matrix Jessica 05/04/12 03:59am
Re: Inverse of Triangular Matrix Jessica 05/05/12 6:49pm
Re: Inverse of Triangular Matrix Forum Modera... 05/06/12 5:16pm
Re: Re: Inverse of Triangular Matrix Jessica 05/07/12 05:34am
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