replicating variables
- To: mathgroup at smc.vnet.net
- Subject: [mg43683] replicating variables
- From: Young Kim <kim17 at fas.harvard.edu>
- Date: Mon, 29 Sep 2003 01:47:59 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
Let's say I have two non linear differential equations which cannot be
analytically solved,
for example,
a[t]' == a[t] { 3 - 2 b[t] - a[t] }
b[t]' == b[t] { 2 - a[t] - b[t] }
What do I need to do if I want to draw parametric curve of
r[t] = { a[t], b[t] }, or { a[t], b[t], t } in 3D where a[t] , b[t]
are the numerical solutions of the preceding equations.
Thanks.
Young