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MathGroup Archive 2000

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Re: DSolve, it should be beautiful...

  • To: mathgroup at smc.vnet.net
  • Subject: [mg23290] Re: DSolve, it should be beautiful...
  • From: Nicola Attico <attico at peg2.difi.unipi.it>
  • Date: Sun, 30 Apr 2000 21:13:40 -0400 (EDT)
  • Organization: Centro SERRA - University of Pisa
  • References: <8c1h0b$q1o@smc.vnet.net> <8c5km2$3tp@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

> It seems to work fine in Mathematica 4. [Paulh]

> It did it for me (I use 4.0). [Leszek]

Maybe this is the problem...
The more recent version of Mathematica I can access
is

In[1]:=$Version

Out[1]=Linux 3.0 (April 25, 1997)

I've to complain with my System Administrator!!
Is DSolve so improuved from version 3 to version 4?
Can I ask you for a kindness, Paul?
Can you check if the following equation

DSolve[f''[z]-(z/(1-z^2))f[z]+(a+b/(1-z^2))f[z]==0,f[z],z]

can be solved in the more recent version of Mathematica
you have? This is not a Legendre equation but it was the
problem originally I had, of which I could not find solutions
using DSolve of Mathematica 3.0.

A last question. If I remember correctly DSolve is a
separate program (add-on?. Can I use a more recent version
of DSolve without changing the version of Mathematica?

Thanks for your time,

Nicola Attico.

----------------
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Dip. Fisica - Piazza Torricelli, 2 - Pisa				
E-Mail: attico at peg2.difi.unipi.it		
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Telefax: +39 050 48277



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