Integration Techniques

We just learnt the different types of integration techniques in school such as substitution, by parts, etc. But, these methods seem kind of laborious. Do professional mathematics and theoretical physicists use these techniques itself or do they use more faster methods ? I would like to know these methods.

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Friendly-neighborhood CAS to the rescue. Take you pick. In a nutshell the integration methods don't get easier if you do more advanced stuff, just the range of integrals that are doable grows. Some integrals are only doable by advanced methods - see this for a taste. – Peter Sheldrick Dec 18 '12 at 12:27
so professionals use CAS only. They don't integrate manually ? Or do they use contour integration and other advanced stuff. Is it easier to integrate normal functions using contour integration ? – carboncopy Dec 18 '12 at 12:33
Are you teaching, trying to make some theoretical point, or just for plain fun? You try to integrate manually. Do you need to know some integral for research, job, life-&-death, etc. matters? You may try some of the numerous books with thousands of solved integrals there, or try some computer-based program (WA, Mathematica,Maple and etc.). – DonAntonio Dec 18 '12 at 12:47
Well, I want to know, since, I'm planning to take up something math related as a career. – carboncopy Dec 18 '12 at 12:49