Maple 18 Questions and Posts

These are Posts and Questions associated with the product, Maple 18
Dear Friends
On 22 March 2018, I received: 
Customer: Universidad Nacional Autonoma De Mexico, UNAM
Order Date: 3/21/2018
Order Number: 889668
Customer Purchase Order: 10972 
For instaling MAPLE 18
Please see the at bottom of the mail
I am trying to reinstall MAPLE 18. Unfortunately the download link
It's no longer available. Please send me a link to download Version MAPLE 18. Thank you very much for your time and consideration.
Best Regards
Oscar Jaramillo-Salgado

El 22 mar 2018, a las 11:05, escribió:

Dear Oscar Jaramillo Salgado,

Here is your copy of Maple 2018. And this is not a release to ignore!

People use Maple to do many different things, so it’s inevitable that each new release will include some features you care about and some features you really don’t need. However, Maple 2018 contains a large number of substantial enhancements to how you interact with Maple, which means you’ll benefit from this release no matter what you use Maple for.

You are receiving this email because you are a member of the Maplesoft Elite Maintenance Program (EMP). While you participate in this program, you are entitled to new product releases as they come out.

If you are a MapleSim user, note that, unlike in previous years, this email contains only your Maple entitlement information. If you are still an active EMP member when MapleSim is released, we will send your MapleSim information to you at that time.

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Customer: Universidad Nacional Autonoma De Mexico, UNAM
Order Date: 3/21/2018
Order Number: 889668
Customer Purchase Order: 10972



Maple 2018:

Product: Maple2018 Single User Entitlement Download for 1 user(s) (includes 1 home use license(s))

The following Purchase Codes activate this product:

[Purchase code deleted]

For the Maplesoft terms and conditions that govern your license to the above noted products, please refer to the Maplesoft End User License Agreement (EULA) found during installation. The Maplesoft EULA can also be found online at . You should review the entire Maplesoft EULA prior to activating your products. 


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Please Help,

I am trying to plot some movement equations, but the following error keeps happening:

Error, (in dsolve/numeric/process_input) system must be entered as a set/list of expressions/equations

when I tryed to rewrite the equation the error became:

Can someone help me with those errors?

Here is the code

Please Help!  The flow gets me like this,Where should i fix this problem.The flow changes for me fluctuate through the series range.What to do to get upflow in f(eta) and downflow in theta(eta)

I started to use maple recently and I do not know why fsolve does not work in this case:

I am wondering if the conjugate(x[j]) is the reason.

Thanks in advance


May  I please get a Maple code to solve the below Perturbation Iteration Solutions for Volterra Integral Equations? 

I shall be very much grateful if I can get the Maple Code.

And possible plotting


 How to rectify the Error, (in MTM:-findsym) invalid input: a string/name list is expected for sort method `lexorder`   .Could you please help me to plot the curve.

How to rectify this error,I want a downfall curve ,Please help.

Please Help! I am a beginner in using maple, I am getting  error in theta(k+2).How to get  m1,m2,m3 values from theta(k+2) and how to plot a curve theta(eta) like,f(eta).


Please help! How to solve this?

How to resolve of this ODE System Error, the proble is "Error, (in dsolve/numeric/process_input) input system must be an ODE system, got independent variables {t, [S, E, In, R]}


FourTrans.mwI am wondering if I can calculate this Fourier Transfrom analytically using Maple:

Hi! I need to simplify a polynomial over an arbitrary field F on a radical variable ν, such that for some power j, ν is in F.

the polynomial takes the form:


but, since νj is in F, this divides every element νi/j into a cotient group of order j, so this can be rewritten as a radical extension of F, in the form: 


where ki, ai are in F. I feel like this is a very straightforward technique for handwritten algebra, but i can't see a command for this on Maple 18. Nor the simplify(..., radicals) Or the combine(...,radicals) seems to help here. Maybe there's an special command for this? Must i do it myself? Please, any help is aprecciated.

Hi maple users 

I am working with the PDE solver.

i am receiving a following error

"unable to compute solution for t>HFloat(0.0):" 

Kindly do the needful how to rectify this error.

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