dongwuu 发表于 2009-3-26 15:30

这个warning什么意思，请指教

Repeated Lanczos shift and factorize steps did not yield additional   
eigenvalues in the requested frequency range.Either the eigenvalues   
are widely separated or, there are only 0 eigenvalues in the frequency
range specified (FREQB and FREQE in MODOPT command).
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