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what is coarse threshold and refine threshold?

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Old   January 31, 2010, 01:02
Default what is coarse threshold and refine threshold?
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what are coarse threshold and refine threshold in adaptive grid? The defaults are 0 and 1e6 ,respectively,but the suggested value is 0-1 in the HELP files. How can I set these two "thresholds"? many thanks.
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