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| Dear All, I am trying to find Integral[Cos[x]/x,{x,0,infinite}]. Integrate can not give a result since the expression is divergent. However, NIntegrate gives a result that I do not trust. Integrate[1/x Cos[x], {x, 0, \[Infinity]}] ... |
| [@Hans Dolhaine][at0] Great ! Many thanks. How can you define the intervals of a,b and c? [at0]: https://community.wolfram.com/web/hdolhaine |