I am quite new to this field and just implement algorithms. I am currently using back-substitution as a way to invert a lower triangular matrix. I would like to ask if there are known ways to improve that back-substitution algorithm,in terms of improving its computations. Thanks very much! BR George
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Do you really need to compute the inverse or you just need to solve a system with this triangular matrix? In the latter case, there's no need to compute the inverse explicitly (even if you want to solve for more right-hand sides). – Algebraic Pavel Jul 15 '14 at 13:24
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Unfortunately,i need to compute the inverse.Is needed for further calculations in the program chain.:D – Rizias Jul 15 '14 at 13:42