Error using eigs: Error with ARPACK routine dnaupd

2014 1 13
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Hi, I'm trying to use a script using eigs function:
opts.disp=0;
[v d]=eigs(A,B,k,'lm',opts);
[Note: the original function used `la`, but my matrix doesn't seem symetrical]
Here's the error message I received: ??? Error using ==> eigs at 255 Error with ARPACK routine dnaupd: info = -9999 [Note: it's the same error message whereas i`m using `lm`, `lr`or `li`(I'm a real newbie..)]
Thanks
Marie-Andrée

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