Hello,

 I am getting into the pdetools, in particular the analytical options. I saw that I can test the MAPLE solution to a pde, but I want MAPLE to test my solution,  how could I do that, MAPLE just substitutes my solution into the pde without differentiating and simplifying.

Thanks,

Daniel

Hello everyone,

I like to force following:

a/(a+b) --->  1/(1+b/a)

I know that collect is a powerful tool that is actually capable of doing such things. In a similar (old) thread, it was suggested to use a function in the last part like

collect(expression, varialble, (x->something)@factor)

but I don't understand what exactly this means. Any help?

another related question is, is the collect command available as right-click option?

I have a differential equation having a parameter say 'a'.

If I increase 'a' by 10%, got change in the solution as well.

How to calculate change in percentage in the solution?.

Thanks

Hi everyone.

Does anyone know what engine is behind the fsolve command? As we know fsolve can solve the sets of equations even without any initial guesses. Is it working based on GA or another global optimization techniques?

Appreciate any help.

MJ

So I've got this function here:

I'm trying to maximize it over the reals using Maple 16. I know from the graph that the maximum is somewhere between 109 and 111. I tried using maximize( f(x), x=109..111) but it keeps giving an overflow exception. How would I go about maximizing this?

I have written a procedure to overload a new "Subs" function. It uses a seq of equations as its first argument followed by the object to act upon (yes, it is to have subs functionality on these objects). I find the overloading works when I have just one equation in the argument list, but with more than one it never calls any of the procedures. The code worked with multiple equations before I overloaded it (i.e. the first proc was verified by itself). FWIW the objects (elemt or bm...

Does maple 16  work with Visual studio 2012?

Check these 3 code lines. a,b are some reals.

s:=a/b

g:=(a,b)->s

g(1,2)

yields a/b

Is it possible to make Maple spit out 1/2, maybe with some default setting command? I still want to keep the function call format g() , so no eval(g(),...)

We are a group of students trying to solve this, we can't find a way.

We are given the system of equations

ax + y +z +u =  1
  x  -y  -z +u  = -a
       y +z -au = b
  x- y +bz +u =-2a


For what values ​​of a and

Modify the shortest path problem by rewriting a procedure Path, non-Recursion
 that print out the shortest path from a to e base on the information from
 setShortestDistNode
 input:  destination "e" and setShortestDistNode
 output:  path : a -> b -> d -> e the total cost: 9
hint: copy everything that we did in shortest path problem, and rewriting a procedure Path, with while loop

I'm assuming this means this, but...

I don't understand the error that appears in blue sentence. How can I solve this error? Thank you very much.

Having a little trouble getting Remove to work properly in Maple 12

a := "Just try to remove a letter using Maple 12's StringTools[Remove]";
                                     a := "Just try to remove a letter using Maple 12's StringTools[Remove]"
with(StringTools);

Hi,

I was trying to find the generalized eigenvalues for the (3x3) matrix pair (P,G) defined below. (I have left everything in symbols with beta and kappa both of which are strictly positive real numbers). For some reason the command Eigenvalues(P,G) is only returning 2 generalized eigenvalues. Any ideas why it doesn't return 3?

Thanks,

Lee

Hi!

I want to write the following textfile in a matrix of the size 4x24:

      1    0.5    0.5      1      1    0.5    0.5      1      1    0.5    0.5      1    0.25    0.25   ...

Hi all,

I have a strange problem with the Classic worksheet in maple 15. To explain the problem i added an image.

when i want to plot vergl_6 without copying the equation i get an error. But when i just copy and paste equation 6 like i did everything works like i suspect.

Can anybody tell me the problem? I need to...