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I am sorry if the question is simple,am trying to find the quicker method to invert a triangular matrix. Could you please provide some references where i could refer? Moreover,is there any known way of obtaining the lower triangular of a Square matrix mathematically? Thank you! G

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I suggest you start reading about the LU decomposition.

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  • $\begingroup$ Thanks very much,do you think is the fastest way to perform inversion? $\endgroup$ – Rizias Jul 8 '14 at 15:55
  • $\begingroup$ The LU decomposition with partial pivoting is the method used in MATLAB, so it is safe for you to assume it is the best known and tested way available. $\endgroup$ – 5xum Jul 8 '14 at 15:57

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