i have written a code to get LU decomposition,now i need a code to solve LUx=b

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L,U is n*n matrix i'm working on Doolittle method of solving Ax=b i need a code to solve for x

Accepted Answer

Torsten on 22 Feb 2018
First solve L*y = b for y, then solve U*x = y for x.
Best wishes
John D'Errico
John D'Errico on 24 Feb 2018
No. Don't use an inverse!
Did your teacher tell you about back and forward substitution? They should have done so by this point.

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