       Re: Problem in Evaluate/Manipulate

• To: mathgroup at smc.vnet.net
• Subject: [mg88639] Re: Problem in Evaluate/Manipulate
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Sun, 11 May 2008 15:13:00 -0400 (EDT)
• References: <g03v2l\$bno\$1@smc.vnet.net>

```Hi,

try

Manipulate[
Solutions =
Evaluate[Table[{x[t], y[t]} /. Solution[] /. {a -> aa, b -> bb,
c -> cc, d -> dd, x0 -> xx0}, {xx0, -10, 10, 10}]], {aa, -1,
1}, {bb, -1, 1}, {cc, -1, 1}, {dd, -1, 1}]

Regards
Jens

wiso wrote:
> I have a problem with this code:
>
> Solution =DSolve[{x^\[Prime][t]==a x[t]+b y[t],y^\[Prime][t]==c x[t]+d
> y[t],x==x0,y==-10},{x[t],y[t]},t];
>
> Manipulate[
> Solutions = Evaluate [Table[{x[t],y[t]}/.Solution[],
> {x0,-10,10,10}]]
> ,{a,-1,1},{b,-1,1},{c,-1,1},{d,-1,1}]
>
> I want to solve only one time the PDE, then I placed it outside the
> Manipulate. The code doesn't evaluate the solution with the dynamic
> values.
>

```

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