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Re: DSolve test

  • To: mathgroup at smc.vnet.net
  • Subject: [mg132715] Re: DSolve test
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Mon, 12 May 2014 00:43:23 -0400 (EDT)
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What alleged bug did you have in mind?

Did something not work as expected with Print in an earlier version. And why use print at all? Just the DSolve expression by itself will give the same output.  In Mathematica 9.0.1, this is:

      DSolve[{u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t]
   (* {{u[t]->t^2}} *)

which, of course, is valid only for t >= 0.

On May 9, 2014, at 2:07 AM, carlos.felippa%colorado.edu at gtempaccount.com wrote:

> Hi, could somebody try this in Mathematica 9 to see if the bug is fixed?
>
> sol = DSolve[{u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t]; Print[sol];
>
> Thanks.
>

Murray Eisenberg                                murray at math.umass.edu
Mathematics & Statistics Dept.      
Lederle Graduate Research Tower      phone 240 246-7240 (H)
University of Massachusetts               
710 North Pleasant Street                
Amherst, MA 01003-9305









  • References:
    • DSolve test
      • From: carlos.felippa%colorado.edu@gtempaccount.com
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