It found the first four number of this sequence fine but for some reason it wont find the limit as it goes to infinity. I think it should end up being 2sqrt(3)/5 or something like that.

Hello everyone, new member here. I've been working with Maple 16/Mathematica 8/Matlab to find the determinants of some symbolic nxn matrices (a1,1 a1,2 etc). Matlab is able to do them quite easily but when they start getting too large it starts truncating them down to 25000 terms. Mathematica works like a charm but I want to beable to verify the results with Maple. Maple does great up to 7x7  but at 8x8 it seems to also truncate results like Matlab and past that...

Hey guys.

I've been using a format where everything, math and text, is in black. The awnsers come out in blue.

Some coleges use a (ugly?) format where the equations are in red and are, in my opinion, less easy to read and take longer to type down.

So my question is simply this: Can I do everything using the black format I'm used to, or are there certain things that I MUST use the red format to compute?

If there are...

Hello there,

I tried using your HTML window that can be activated from your editor to write a post. I intended to use HTML TT tags to display some MAPLE input, and everything previewed fine. However when I looked at the actual post after I submitted, the content between the TT tags had disappeared. Tried it twice. I have a feeling you are validating your HTML but some regex does not know about the TT tags and eliminates them.

Best regards,

Marko Riedel

Dear friends,

I recently saw an interesting integral at this link.

It seems to be another case where the integrator (Maple 15 (X86 64 LINUX)) somehow looses his/her bearings.

When I try the following command: int(1/(sin(theta)+cos(theta))/sqrt(sin(theta)*cos(theta)), theta=0..Pi/2); I get an answer that is fairly complicated...

Hi all,

 I want to find the co-efficient for z^k of 2-stage hyper exponential Random Variable. That is expressed as sum of two Taylor series. I have given the code in the attachment. I have tried using convert(A(z),FormalPowerSeries,z) with op([1,1],..), but it didn't work.Coefficient_Extract_.mw

Dear Maple Users!

I'm quite beginner in Maple. I will appreciate all of your help and a guidance.

I have written the simple procedure (in attached file) and it takes about 40 sec to make

one cycle on i5 2.8Ghz, 4Gb RAM, Win7x64, Maple 14 x64. I believe that it can be solved much 

more faster.

  qn_mp_v1.mw

What are the ways to speed up my procedure?

Hi there,

I am calculating he rank of a matrix in Maple and I have a result. However, I want Maple to show me the intermediate steps that it used. I know that the rank function uses gaussian eliminations. Is it possible to make it display these steps? 

The matrix is 8*8 so I think it is taugh to use the tutor tool. 

I tried ShowSteps but it says that rank is not a valid problem.

Any ideas?

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

I'd like to take the output of ifactor(n::posint), the prime factorization of n, and index the terms of the product to a list. ie: ifactor(256)=2^8 so [2,2,2,2,2,2,2,2]. or 135 -> (3^3)(5)->[3,3,3,5].
Any suggestions? 

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?

Hi everybody,

Does somebody has an idea about how to model the temperature of water during freezing ?

I mean, if you consider a certain mass of water and you put it, for example on a fridge. I don't consider the convection but only the diffusion, and I would like to model, if possible with an animation the temperature of the water (as a cube for the shape).

Normally, during the freezing I should observe a decrease of the temperature, then a freezing...