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Re: For Loop and NDSolve

• To: mathgroup at smc.vnet.net
• Subject: [mg85211] Re: For Loop and NDSolve
• From: Szabolcs <szhorvat at gmail.com>
• Date: Sat, 2 Feb 2008 03:26:43 -0500 (EST)
• References: <fnuh4s$9ni$1@smc.vnet.net>

One more thing .... since that sparse array is diagonal you might try
using a vector instead, something like

f[x_?VectorQ] := {1, 2} x
NDSolve[{u'[t] == f[u[t]], u[0] == {0, 0}}, u, {t, 0, 1}]

This make make things better ... or worse ...