MathGroup Archive 2013

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Analytical solution possible?

  • To: mathgroup at
  • Subject: [mg131993] Re: Analytical solution possible?
  • From: Murray Eisenberg <murray at>
  • Date: Tue, 12 Nov 2013 00:16:10 -0500 (EST)
  • Delivered-to:
  • Delivered-to:
  • Delivered-to:
  • Delivered-to:
  • References: <>

I tried this in Mathematica 9.0.1 and DO get the expected message 
Solve::ifun : Inverse functions are being used by Solve. . . and, 
furthermore, obtain a rather long solution that is expressed in terms of 
some InverseFunction expressions.

What version were you using?

On Nov 11, 2013, at 12:05 AM, Narasimham <mathma18 at> wrote:

> NoISQL = {SI'[t] == (R[t] - a)/(2 a - R[t])/R[t]^2,R'[t] == 
Cot[SI[t]]/R[t]}; DSolve[NoISQL, {SI, R}, t]

Murray Eisenberg                                    
murray at
Mathematics & Statistics Dept.      
Lederle Graduate Research Tower           
University of Massachusetts 
710 North Pleasant Street  
Amherst, MA 01003-9305

  • Prev by Date: Re: unser-interface problems using Mathematica as a calculator
  • Next by Date: Re: wrap a density plot on a sphere
  • Previous by thread: Analytical solution possible?
  • Next by thread: Re: Analytical solution possible?