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Re: mathematica:- question ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg16571] Re: mathematica:- question ?
  • From: Harald Giese <giese at dkrz.de>
  • Date: Wed, 17 Mar 1999 23:54:52 -0500
  • Organization: Institut fuer Meereskunde, Universitaet Hamburg
  • References: <7clcqe$9lh@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

alex_punnoose at my-dejanews.com wrote:
> ...
> How do you tell Mathematica that $a > 0$ in for example the following
> integral:
> 
> Integrate[Sin[x],{x,0,a}];
> 
> Similarly, it is sometimes necessary to define that $a$ is Real, or Imaginary,
> or whatever ...
> 
> Any suggestions ??

Alex,

Have a look at the option "Assumptions" Integrate (see Mathematica online help).

Regards,
Harald


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