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Strange integration behavior

jim.hagler's picture
Sun, 2011-05-29 16:33 — jim.hagler

Version 5.5, build 2960. An integral that is clearly positive is evaluated as  0. A similar integral evaluated correctly. A similar integral which evaluates correctly to a 2nd integral but then SWP hangs if I try to evaluate the 2nd integral.

Jim

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Integration-errors.tex1.95 KB
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Tue, 2011-05-31 07:28 — John MacKendrick
John MacKendrick's picture

Scientific WorkPlace returns

Scientific WorkPlace returns the answers given by the underlying MuPAD engine.  Note that if you choose Compute, Evaluate Numerically, then you get a positive answer.

Future version of the product should deal with this type of integration problem more appropriately.

I am not able to reproduce the problem you report concerning the hanging of SWP, however.