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patricmutwiri / symja

Automatically exported from code.google.com/p/symja
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Bug in function Integrate[] #24

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
I call the function: "Integrate[2x^2/(x^3+1),x]"

What is the expected output? What do you see instead?
The expected output is 2/3 log(x^3+1). But the result is 
2/3*1/3*Log[x+1]*Log[x^2+x+2]

What version of the product are you using? On what operating system?

Please provide any additional information below.

Original issue reported on code.google.com by huynhlam...@gmail.com on 28 Sep 2010 at 11:50

GoogleCodeExporter commented 9 years ago

Original comment by axelclk@gmail.com on 29 Sep 2010 at 5:44

GoogleCodeExporter commented 9 years ago 
Improved JASConvert for the Integrate[] results.
http://code.google.com/p/symja/source/detail?r=566

The result:
 2*(1/3*Log[x^2-x+1]+1/3*Log[x+1])
is an alternate form for:
 2/3 log(x^3+1)

Original comment by axelclk@gmail.com on 29 Sep 2010 at 5:49

GoogleCodeExporter commented 9 years ago

Original comment by axelclk@gmail.com on 10 Oct 2010 at 10:25