Integrate
- To: mathgroup at yoda.physics.unc.edu
- Subject: Integrate
- From: deutsch at bu-pub.bu.edu
- Date: Thu, 4 Mar 93 16:00:57 -0500
Hello Mathgroup,
I have a question which I suspect has been discussed before.
Is there a reason why Integrate[ (x + c)^3, x ] does not return
(x + c)^4
---------
4
Instead here is the result:
Mathematica 2.0 for SPARC
Copyright 1988-91 Wolfram Research, Inc.
-- X11 windows graphics initialized --
In[1]:= Integrate[ (x + c)^3, x ]
2 2 4
3 3 c x 3 x
Out[1]= c x + ------- + c x + --
2 4
In[2]:= Simplify[%]
2 2 4
3 3 c x 3 x
Out[2]= c x + ------- + c x + --
2 4
In[3]:= D[%,x]
3 2 2 3
Out[3]= c + 3 c x + 3 c x + x
In[4]:= Simplify[%]
3
Out[4]= (c + x)
Clearly, the output Out[1] is correct but
is there some way to force Out[1] to look like:
(x + c)^4
---------
4
Simplify, doesn't seem to do the job either.
David Deutsch
Information Technology
Boston University
deutsch at it.bu.edu