General--Differential equation problem..
- To: mathgroup at smc.vnet.net
- Subject: [mg66284] General--Differential equation problem..
- From: randomtalk at gmail.com
- Date: Sun, 7 May 2006 00:42:46 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
hello, i was trying to solve a set of differential equations needed for a school project.. However, i'm completely new to mathematica 5.0, and i have downloaded trial, here is what i inputed into the software:
In[2]:=
DSolve[{x'[s] == Cos[z], y'[s] == Sin[z], z'[s] == 1/r, r == 2}, {x, y, z}, s]
returns this error: DSolve::dvnoarg: The function z appears with no arguments.
Is there anything wrong with what i inputed? The differential equations came from this website: http://fy.chalmers.se/LISEBERG/eng/loop_pe.html
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