Re: Inverse of a Big Matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg96850] Re: Inverse of a Big Matrix
- From: dh <dh at metrohm.com>
- Date: Thu, 26 Feb 2009 07:54:40 -0500 (EST)
- References: <go31lo$fds$1@smc.vnet.net>
Ho Gregory, look up "PseudoInverse" in the manual. Daniel Gregory Lypny wrote: > Hello everyone, > > I'm computing the inverse of a big matrix, 500 x 500. Well, maybe not > that big, but I'm getting the error message > > "General::luc: Result for `1` of badly conditioned matrix `2` may > contain significant numerical errors. >>" > > and I'm wondering if anyone can suggest a workaround. All I can say > is that the determinant is very small (-4.327475016428501*10^-1947), > and that I can compute the inverse of various submatrices of size 100 > x100. > > Regards, > > Gregory >