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I would like to calculate an inverse of matrix in java. Are there any already existing packages which calculate inverse of matrix. I found similar question, but the answers in the questions are not so strongly recommending to use anyof the packages. Even i could not follow the method they are using. I have a large matrix of 10000s of rows and columns. I would
like to calculate inverse of it.
I think you should give a shot to JAMA
The documentation presents an inverse function for matrices
http://math.nist.gov/javanumerics/jama/doc/
Seeing the size of your matrix though, You WILL have to factorize it first .