Re: Drawing function with 3 variables in a graph

*To*: mathgroup at smc.vnet.net*Subject*: [mg71941] Re: Drawing function with 3 variables in a graph*From*: royend at gmail.com*Date*: Tue, 5 Dec 2006 06:04:39 -0500 (EST)*References*: <ekmefu$8hs$1@smc.vnet.net><ekp4ie$2al$1@smc.vnet.net>

I guess my problem is still this: With[{m=100, a = 1}, Plot{ f[x,m], {x,-5,5}]] f contains several smaller functions, which uses a as their variable. But it doesn't seem like the variable a is passed on to the functions inside f[x,m]... I had hoped that this would set a = 1 and m=100, and then calculate the rest with x varying from -5 to 5. Thanks for all your tips and advices. I will post back later if I find a solution, and hope you will too if you find something. Jens-Peer Kuska skrev: > 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? > >