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pdsolve times out when using latex in Maple 2021
I have found few PDE's so far that timeout in Maple 2021 which did not do that in Maple 2020.2. Using same amount of time out, on same PC.After some debugging, I found that that cause is calling...
View ArticleError using pdsolve numeric - newbie question
I am trying to solve three simultaneous PDE where the first two PDEs are 1D while the third is 2D. When using pdsolve with numeric option I am getting the following errorError, (in...
View ArticleHow do I solve this 4th order PDE?
Hi, everyone, here is my maple code restart; In := 5.75*10^(-12); M := 1000;E := 10^12;V := 100;m := 2300;K := 10^9;A := E*In; B := M*V^2;C := 2*M*V^2;F := M + m;G := K; pde := A*diff(w(x,...
View ArticleHow do I solve the heat equation in spherical coordinates?
I'm trying to understand what I need to do to get Maple to solve the heat equation in spherical coordinates. I'm considering a test problem: a spherical shell with inner radius 1 and outer radius 2....
View ArticleEmpty output from pdsolve
hi, I wonder why this output is empty because I tried to get solution below partial equation:restart; with(PDEtools); pe := diff(u(t, x, y), t) = u(t, x, y) - diff(u(t, x, y), x $ 2) - diff(u(t, x, y),...
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caculation of an elliptic PDEs system
Hi everyoneI wonder if the following elliptic PDEs system can be caculated by Maple 2018.The PDEs system iswhereMaple sketched solutions of the above system, but unfortunately main portions (sine...
View ArticleHow to solve System of partial differential equations
system_of_PDE.pdfHow to solve the system of partial differential equations in Maple. I have attached a pdf file, please check it. Kindly help me.Thank you[Edit: I've also atached the OP's worksheet...
View ArticleMaple PDE solver
Hello,does Maple have a PDE solver? I want to solve the following inhomogeneous case of the heat equation:diff(u(t,x,y,z),t)=k*Laplacian(u(t,x,y,z))+l*u(t,x,y,z)+mwith boundary conditions...
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How to solve this PDE equation
Dear maple users Greetings.I hope you are all fine.In this code, I am solving the PDEs via pdsolve with numeric.There is some mistake in the boundary condition and pdsolve.Kindly help me that to get...
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How to plot the figure at time
Dear maple users,Greetings.In this code, the problem has executed. But I unable to get the graph. Kindly do the needful to plot the figure at time t=0.45. Also, please explain how to import the...
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How to find out f'(x,t) and f''(x,t) values
Dear maple users,In this code, how to find out the f'(x,t) and f''(x,t) values. How to export the computed values in the excel file.JVB.mw> restart:> with(PDEtools):> with(plots):> fcns :=...
View ArticleGeneral solution of partial differential equation
diff(w(r, theta), r)/r + diff(w(r, theta), r, r) + diff(w(r, theta), theta, theta)/r^2 = r^3*cos(3*theta) Can it be solved without boundary conditions?
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How to execute the piecewise condition in pdsolve
Dear maple usersA fine day wishes to all In my problem, L(z) is a piecewise condition.L(z):I have to calculate the f(x,t) value at x=0.71,t=1.12 and z=0.71 for L(z)=0..1.How to calculate the f(x,t)...
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How to integrate the computed values
Dear maple users,A fine day wishes to all.Here, we have computed the fN(x,t) value by using pdsolve.We have to integrate the computed value and need to find the values with the sequence of...
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pdsolve problem with Laplace pde on disk using polar coordinates
I can't get pdsolve to solve this pde. Here are my tries below. One of them works, but the analytical solution Maple gives is wrong. So I am not sure if it needs some additional hints or some other...
View ArticleNeed help in solving numerical pd-system
Hello everyone,im new here and i've nerly no expertise in pd-equations. I was trying to solve this pd-system with the following-code: with(plots); with(DEtools); with(PDEtools); `εg` := .4;...
View Articlepdsolve with piecewise boundary condition.
I have a question? from the link: https://www.maplesoft.com/applications/view.aspx?SID=5084&view=htmlHow can we solve equation 2.1 to achieve solution 3.1 with boundary conditions explained in...
View ArticleWhy is pdsolve a module? How do I derivatives of a solution?
restart; Here is my pde and a procedure that plots the solution. K1:=proc(g) uses PDEtools,plots: local pde, ic,ans;...
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How to integrate the indefinite integral for PDE solve
Dear maple users,A fine day wishes to all.I have solved the PDE via PDsolve. Here I need to calculate the Psi function. How to calculate the indefinite integral and how to find the constant-coefficient...
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