Re: integrate problem
- To: mathgroup at smc.vnet.net
- Subject: [mg98865] Re: [mg98837] integrate problem
- From: Lou Talman <talmanl at mscd.edu>
- Date: Mon, 20 Apr 2009 19:10:28 -0400 (EDT)
- References: <200904200939.FAA12325@smc.vnet.net>
On Apr 20, 2009, at 3:39 AM, sean_incali at yahoo.com wrote: > But the following gives the integral itself. > > Integrate[1/(s[t] + a), t] As it should. This isn't a problem with Mathematica---it's a problem with your understanding of integration. > > > If the function that needs to be integrated w.r.t time is 1/(s[t] + > a), how do I accomplish that? You don't. At least, you don't without knowing the function s[t]. For example, if s[t] = t, the integral is Log[t + a], while if s[t] = t^2, the integral is Arctan[t/Sqrt[a]]/Sqrt[a]. --Louis A. Talman Department of Mathematical & Computer Sciences Metropolitan State College of Denver <http://clem.mscd.edu/%7Etalmanl>
- References:
- integrate problem
- From: sean_incali@yahoo.com
- integrate problem