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MathGroup Archive 2006

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Re: Drawing function with 3 variables in a graph

  • To: mathgroup at smc.vnet.net
  • Subject: [mg71865] Re: Drawing function with 3 variables in a graph
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Fri, 1 Dec 2006 06:22:19 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <ekmefu$8hs$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

g[a_] := a/2
f[t_, m_] := m*g[a]^t

myfun[aa_, t_, m_] := Block[{a = aa},
     f[t, m]
     ]

Plot[Evaluate[{Table[myfun[0.5, t, m], {m, 0, 5}]}], {t, -20, 20}]

Regards
   Jens

royend at gmail.com wrote:
> I want to draw a fairly complex function several times in one graph. By
> using different colour I hope to present the development of my function
> as the three variables changes.
> 
> Earlier I have managed two variabels by using this:
> Plot[Evaluate[ { Table[ f[t,m], {m,0,5}] } ], {t,-20,20},
> PlotStyle->etc]
> 
> But this time I have met difficulties because one of my variables are
> "hidden" inside the function f(t,m), like this:
> g(a) = a/2
> f(t) = m*g(a)^t
> m,a and t are variables.
> 
> Therefore I need to control 3 variables and have tried this:
> With[ {a=5}, Plot[ same as above]....
> 
> I have read some about lists, graphics and so on but still haven't been
> able to find any solution. 
> Do you have any tips for solving this?
> 


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