Maple 18 Questions and Posts

These are Posts and Questions associated with the product, Maple 18

guys..i need help to find the answer for this equation..for all value of in and b in (a and b)...for all combination of a and b

what is the past ..this equations was it doesnt' solved anymore...integral equations

hello sir..i'm new..and i want to know how to put command prompt ..between two command line .i read but i didn't find..

hey guys...please watch my file and help me. when i call(Am) only shows last value. how can i get all (Am) value in like seq or table



i := [seq(2*i-1, i = 1 .. 10)];

[1, 3, 5, 7, 9, 11, 13, 15, 17, 19]


for i in i do A[m] := (x/a)^(i+1)*(1-x/a)^2 end do;























when i call(Am) only shows last value. how can i get all (Am) value in like seq or table

i want to solve..this what is happening..i used maple not a long time me

restart; with(LinearAlgebra)

i := 1;



w := c[i]*(x/a)^(i+1)*(1-x/a)^2*(y/b)^(i+1)*(1-y/b)^2;



(1/2)*(int(int([D__11*(diff(w, x, x))^2+2*D__12*(diff(w, x, x))*(diff(w, y, y))+4*D[66]*(diff(w, x, y))^2+D[22]*(diff(w, y, y))^2-2*q*w], x = 0 .. b), y = 0 .. a))

Error, (in int) wrong number (or type) of arguments: for an operator integrand a range without a variable of integration is expected, got x = 0 .. b




I need a help for solving this non linear equation by Adomian Decomposition Method.How to find A0,A1,A2... and u1,u2,u3 and a series.I am getting this error,Please help me.


PDEtools[declare](prime = x);

`derivatives with respect to`*x*`of functions of one variable will now be displayed with '`


equ1 := u[tt] = 1/2*(u[xx]+u[yy])+u^2:

ICS; u(x, y, 0) = 1, u[t](x, y, 0) = e^(x+y), lambda = 0, u[0] = 1+t*e^(x+y), F(u[0]) = u[0]^2

for n from 0 to 5 do A[n] := d^n*[F*(sum(lambda^i*u[i], i = 0 .. n))]/(factorial(n)*`dλ`^n); u[n+1] = (1/2)*int[diff(sum(u[n], n = 0 .. 5), x, x)+diff(sum(u[n], n = 0 .. 5), y, y), t = 0 .. t, t = 0 .. t, dt*dt]+int[A[n], t = 0 .. t, t = 0 .. t, dt*dt] end do



i try to plot this equation        2.96736996560705*10^(-12)*p^2+1.31319840299485*10^(-13)*t^2-8.89549693662593*10^(-7)*p+8.53128393394231*10^(-7)*t-3.65558815509970*10^(-30)*p*t-1 = 0 and use this command plots:-implicitplot(TWeq, p = -10^10 .. 10^11, t = -3*10^8 .. 3*10^8, gridrefine = 3, scaling = constrained, size = [1000, 100]) but  it only shows like this

it should be an ellipse but it just show like this..please help me.

I need help to solve this ODE,

I didn't get series values F(k+3),Theta(k+2),phi(k+2),error comes in summation values.and

How to find the unknown parameters A,B,C.

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:

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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.

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