high precision linear algebra

[Paul Kienzle]

In order to test the accuracy of an algorithm I wanted high precision 
linear algebra calculations.  I found the packages tnt and jama on the 
net which provides template implementations of qr, eig, lu, chol, and 
svd.  I combined this with qlib which provides 100+ digit arithmetic.  
After some hacking they worked well together and I could perform my 
tests.

I've sent the patches to the upstream authors, but could forward them 
to anyone else who wants them.

Sorry, no octave bindings :-(

- Paul



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