Issue in Integration on Trigonometric Functions

[GoogleCodeExporter]

What steps will reproduce the problem?
The following trigonometry functions could not Integrated by symja
1.Integrate(Cos(a*x)*Sin(b*x),x)
2.Integrate(Cos(a*x)*Sin^2(b*x),x)
3.Integrate(Cos^2(a*x)*Sin(b*x),x)
4.Integrate(Cos^2(b*x)*Sin^2(a*x),x)

What is the expected output? What do you see instead?
Refer that:
http://integral-table.com/

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

Please provide any additional information below.
Refer that:
http://integral-table.com/

Original issue reported on code.google.com by umarfaro...@gmail.com on 30 Sep 2013 at 7:14

[GoogleCodeExporter]

I commited these changes for Sin and Cos function:
https://bitbucket.org/axelclk/symja_android_library/commits/88d34baa4e42e32c9f32
8e5c3f0a0d2779441d47

Please rewrite expressions like this:
...
2.Integrate(Cos(a*x)*Sin(b*x)^2,x)
3.Integrate(Cos(a*x)^2*Sin(b*x),x)
4.Integrate(Cos(b*x)^2*Sin(a*x)^2,x)

Original comment by axelclk@gmail.com on 1 Oct 2013 at 8:14

• Changed state: Started