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Plot and DSolve

  • To: mathgroup at smc.vnet.net
  • Subject: [mg113818] Plot and DSolve
  • From: "Bruce Colletti" <bwcolletti at verizon.net>
  • Date: Sun, 14 Nov 2010 06:09:23 -0500 (EST)

Re 7.0.1 under WinXP.

The code below works as expected:

z = DSolve[{x'[t] == -L x[t] + u, x@0 == c}, x, t]

Manipulate[
 Plot[Evaluate[x@t /. %], {t, 0, 10}, PlotRange -> {0, 5 u/L}],
 {c, 10, 20},
 {u, 10, 15},
 {L, 2, 4}]



However, when z (DSolve output) replaces % (in Plot), there's no plot.  What
causes this?

Thanks.

Bruce 




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