The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Inactive » comp.soft-sys.math.mathematica

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: integrate problem
Replies: 2   Last Post: Apr 20, 2009 7:11 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]

Posts: 1,838
Registered: 12/6/04
Re: integrate problem
Posted: Apr 20, 2009 7:10 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On Apr 20, 2009, at 3:39 AM, 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


Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.