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Example of When IPARAM(1) = 0, and IDO = 3, #329

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mandaldi opened this issue Dec 22, 2021 · 0 comments
Open

Example of When IPARAM(1) = 0, and IDO = 3, #329

mandaldi opened this issue Dec 22, 2021 · 0 comments

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@mandaldi
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I am looking for an example of arpack when iparam(1)=0 and IDO=3.

For IDO=5, does this iparam(1) helpful? I am wondering about the requirement of multiple shifts when a large number of eigenvalues are requested. Thanks in advance.
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@mandaldi