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Offline Jarrinator  
#1 Posted : 26 July 2013 01:10:53(UTC)
Jarrinator


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Man
Ecuador
Location: Profeta Miqueas Oe10-309 y Tabiazo

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I don't know if this problem has been already reported, but I see some weird behavior with some simple integrals, this happen when I try different kind of optimizations (symbolic, numeric or none) at the same time I try different kind of fraction convertions(decimal, fracction or auto), when I try the eval function I get the same problem.
I attach a file done in the latest stable version (0.96 build: 4868), showing this behavior.

Edited by user 26 July 2013 01:26:44(UTC)  | Reason: Not specified

File Attachment(s):
Wrong_sign_1.sm (14kb) downloaded 45 time(s).
Ecuadorian Electronic engineer and MBA student at Salesian Polytechnic University.
thanks 2 users thanked Jarrinator for this useful post.
on 26/07/2013(UTC),  on 26/07/2013(UTC)

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Offline omorr  
#2 Posted : 26 July 2013 08:09:37(UTC)
omorr


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Serbia

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Confirmed in 096_4909

It seems that wrong result will be when the Fractions: Fraction/Auto and Optimization: Numeric

Regards,
Radovan
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
thanks 1 user thanked omorr for this useful post.
on 26/07/2013(UTC)
Offline mkraska  
#3 Posted : 20 September 2013 23:07:28(UTC)
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The problem is solved by the Maxima plugin. However, currently you need to explicitly let Maxima take over the functions, otherwise the integrals will work the old way.

[EDIT] Adaption to current state of Maxima plugin

Edited by user 23 September 2013 01:08:13(UTC)  | Reason: Not specified

mkraska attached the following image(s):
takeover.PNG
Martin Kraska

Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx
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