looks like a pretty good idea Robert, I'm not used to work with matrix with maple, so I'd never thought in this possibility.

Thanks

PS.: What do you do man? I mean.. you always have answers for my questions, you are really good...

Robert, you saved me again.

I knew that there was something weird with this commad fsolve in this situation. I learned this from maple help where there is an example with heat transfer..

Thanks very much man...

Have a nice week..

Hi, I'm here again needing some help.

This time I'm trying to get the value at a point using the solution of a PDE obtained by the command pdsolve. I've read the help of maple but I can't understand the right way to do this. I'd appreciate any help.

The problem is the following:

> diffusion:=pdsolve(diff(N(x,t),t)=0.05*diff(N(x,t),x,x),{N(x,0)=0, D[1](N)(0,t)=-0.00045/(7.86*0.05), D[1](N)(0.8,t)=0}, numeric, timestep=0.1, method=CrankNicholson);> valor:=diffusion:-value(t=1,output=listprocedure);

> uval:=rhs(op(3,valor)); (this command I understand)

> fsolve(uval(x)=0.05,x=0..0.8); 

Wellington Azevedo Silva Junior
Metallurgical Engineering - IFES
Brazil

Man, that's what I was talking about... Thank you very much.

Take a look at how it looks now:

I made each bar separately at each time. To do this I created one polygon for each piece of the bar and associated to it its temperature. Looking from another view:

Looks good, but now I'll try to represent each bar as a continuous curve colored, to try do avoid the divisions and some strange things that apears due to the difference of level in Z axis in the image.

But Robert, thank you very much for your help..

Hi Robert,

Thanks for your help. Now the figure looks much better with more colors:

But it still is not what I want. I'm lookig for a way to create a plot like this one below:

In this figure we have a color scale where the blue represent the coldests temperatures and the dark red represents the hottests temperatures. The temperatures between the hottest and the coldest is represented by another colors which makes the interpretation more intuitively.

If someone knows how to produce this kind of scale, I would apreciate the advice. And Robert, thanks again, your idea made my bars look much better.