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 sleschke #1 Posted : 06 February 2009 16:17:05(UTC) Rank: MemberGroups: Registered Joined: 05/02/2009(UTC)Posts: 13Location: Germany Hello Smath,I would like to thank you too for providing such a great program.When I tried some basic calculation I found some inconsistancein the way a term is evaluated.If I try: π/6 + π/6 ->I will get 12π/36.By using the menu this can be simplified to π/3If I assign: X1:=π/6 X2:=π/6and try: X1 + X2 ->I will get 7440786129085100/7105427357601000I would have expected the same result like in the direct calculation.I had a similar effect when calculating a definite integral from -π/6 to +π/6 of cos(x)dx I will get the result 1.If I do the same integral for √2*cos(x)dx I will get 7071/5000In general I would say that results should stay symbolic as far as possible.It would also be nice if results would already be simplified as far as possible.
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 Andrey Ivashov #2 Posted : 06 February 2009 17:23:45(UTC) Rank: AdministrationGroups: Developers, Registered, Knovel Developers, Administrators, Advanced MemberJoined: 11/07/2008(UTC)Posts: 1,616Was thanked: 1978 time(s) in 666 post(s) Thank you for the reports.sleschke wrote:when calculating a definite integral from -π/6 to +π/6 of cos(x)dx I will get the result 1.If I do the same integral for √2*cos(x)dx I will get 7071/5000This happens because definite integrals program can evaluate only in numeric, that's why we can't fix it now. But I'll remember it for the future.sleschke wrote:If I assign: X1:=π/6 X2:=π/6and try: X1 + X2 ->I will get 7440786129085100/7105427357601000Thanks for this finding, will try to fix it till next release.
 Andrey Ivashov #3 Posted : 07 February 2009 00:21:14(UTC) Rank: AdministrationGroups: Developers, Registered, Knovel Developers, Administrators, Advanced MemberJoined: 11/07/2008(UTC)Posts: 1,616Was thanked: 1978 time(s) in 666 post(s) One of the issues fixed:Will be available in the next version of SMath Studio. Thank you once again
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