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ARPACK help

  1. Jul 9, 2007 #1
    I'm using ARPACK to find the eigenvalues of a matrix, it works for some of the problems I need it for, but for others, it returns INFO = 3, which means:

    Remark 4 says:

    I have tried increasing NCV, and playing with the values of both NEV and NCV, but no luck.

    Anyone who has worked with ARPACK, and knows how to solve this problem, your help would be greatly appreciated.
     
  2. jcsd
  3. Jul 12, 2007 #2
    Anyone? I'm kinda stuck here, I can't move on until I get this working, and noone around here seems to know why it's doing it, or how to fix it.
     
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