I have a rather large number of combinations to search and would like to use Task in order to take advantage of my multicore machine. The easiest way it seems to me to use Task to break up the total number of combinations into say, four pieces. Any one familiar with Task have any suggestions?

Hello Folks:

I'm trying to generate a plot of a procedure that uses fsolve and I get the following error message:

> implicitplot(IC(2, x, y, 1, 1), .1 .. .9, -1 .. 1, filled = true, numpoints = 10);
Error, (in fsolve) x is in the equation, and is not solved for

It seems that Maple is passing x to the procedure IC and not the numerical value of x.

I tried, without success,  to delay the evaluation as suggested here

I have some automatically generated maple code. The code is in fact entirely within a single MAPLE object module. The auto generated code is ugly; fixing it is not feasible. Dealing with it by hand is not feasible.

If you have an ugly MAPLE proc, and just want to get a standard format for the code in the proc, you can print the proc in a maple command window and copy-past it back into the source file. *poof* it looks better. You loose the comments but who needs those anyway :...

Hi,

I'm trying to generate all the possible combinations of each M[i] according to the possible values for c,d and e. The code I have here generates some of them but not all - it misses out the combinations when the two or three elements in the square brackets are different ie. 

it generates
[{1}, [{1}, {1}], [{1}, {1}, {1}]]               
[{1}, [{2}, {2}], [{2}, {2}, {2}]]             

Hello guys,
I'm newb with Maple and trying to solve the following nonlinear recurrence system:

rsolve ({L(0)=1,L(n)=1.025*L(n-1),h(n)=L(n)/(1.1*L(n)-0.1*v(n-1)),v(0)=0.5,v(n)=(1+h(n))*v(n-1)},{L,h,v});

But Maple returns me nothing, no error. What's might be the problem?

Thanks in advance.

In the following task procedure, when i>1, it works well,but if i=1, the task(M,1,5) returns error

Hello,

I've just asked maple to plot a(s) from s=0 ..10 where a(s) is the absaolute value of a complex piecewise function. When I enter the command to plot:

> plot(a(s), s = 0 .. 10, discont = true);

maple just shows 'Evaluating' and fails to produce anything. I've left it for up to 20 minutes without any result. Maple has successfully plotted very similar things before in a matter of seconds so I don't think time is an issue here. The full script is as follows:

I couldn't find a command for this. Is it possible that does not exist for this every day problem?

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What's wrong with my loop? It works fine if no_legs is set to 3, but when it is set to 2 or 4 it doesn't work (as in the picture). The code is to list combinations, as in http://www.mapleprimes.com/questions/149475-How-Do-I-Create-Combinations-According. I'm really stuck. Thank you for any help!

Hi everybody,

I already discussed my tasks with @Preben Alsholm. Therefore, I decided to share it with you and try to finalize solution.

Actually, I want to calculate heat dynamics transfer between one, two or more rooms. Hence, I used heat balance approach to set the system of differential equations:

Hi, 

     I was wondering why numeric integrals that approach zero converge slowly? Is there a way to arrive at the answer (0) faster? Besides proving it symbolically

In a webinar on July 10, 2013, I solved the related rate problem:

Helium is pumped into a spherical balloon at the constant rate of 25 cu ft per min.
At what rate is the surface area of the balloon increasing at the moment when its radius is 8 ft?

A question in the Q&A at the end of the Webinar asked if it were possible to have an animation illustrate the expanding sphere and the rate of change in the surface area thereof. 

Hi,

Help please! Maple beginner here. I'm trying to relabel a list of lists and sets so that the third occurrence of each number becomes that number+1,

eg. [[1],[{1,2}],[{1,2}]] ----->  [[1],[{1,2}],[{2,3}]]

or [[1],[{1,2,3}],[{1,2}]] -----> [[1],[{1,2,3}],[{2,3}]]

I think because there are sublists and subsets, I can't use things like member(x, s, 'p') or SearchAll (ListTools), so not sure what to do. Any suggestions?

Hi everyone,

I am new to Maple, and require the use of grtensorii in my research. The package is installed correctly and will open fine, but it has troubles in finding the metric files to use. When I try to qload the metric I want I get the error message:

Error, (in qload) Could not find metric perturbed.

I have spoken to some colleagues who ran into similar issues making grtensor compatible with Maple 15, and they ran the commands

unprotect(sqrt);