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MathGroup Archive 2005

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Re: DSolve problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg60121] Re: [mg60103] DSolve problem
  • From: "Jose Luis Gomez" <jose.luis.gomez at itesm.mx>
  • Date: Sat, 3 Sep 2005 02:06:10 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Two errors:
1) Either all of them must be t, or all them must be x
2) Write Sin, with capital letter

This one works:

DSolve[y'[t] == Sin[t] - 2y[t], y[t], t]
 
Bye!
José

-----Mensaje original-----
De: sunnewton [mailto:sunshinenewton at gmail.com] 
Enviado el: Viernes, 02 de Septiembre de 2005 03:33 a.m.
Para: mathgroup at smc.vnet.net
Asunto: [mg60103] DSolve problem

Hi,
I am a freshman of Mathematica, I need help here...

I met such problem as:

DSolve[y'[x] == sin[t] - 2y[x], y[x], t]

DSolve::"dvnoarg": "The function \!\(y[x]\) appears with no arguments."

How to Handle???


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