Unanswered Questions

This page lists MaplePrimes questions that have not yet received an answer
Hello everyone, I was wondering if I can get some advice on solving two integral equations given below for u and b. y(r) is parametrically dependent on 'u' and 'b'. l := -C1*(int((3*polylog(5/2, -exp(b*(u-y(r))))/b^(5/2)+y(r)*polylog(3/2, -exp(b*(u-y(r))))/b^(3/2))*r^2, r = 0 .. 10.))-C2=0; I2:=C3*(int(r^2*polylog(3/2, -exp(b*(u-i))), r = 0 .. 10.))/b^(3/2)-1=0; where C1,C2,C3 are numbers and y(r) is parametrically dependent on 'u' and 'b'.
Hi everybody, I have the following problem: If I denote by : He:=(n,k,x)->(-1)^n*(n!)^(1/2)* (GAMMA(n+k+(1/2)))^(-1/2)* LaguerreL(n,k-(1/2),x^2); and Ho:=(n,k,x)->(-1)^n*(n!)^(1/2)* (GAMMA(n+k+(3/2)))^(-1/2)*x* LaguerreL(n,k+(1/2),x^2); Can I compute the series: sum(He(n,k,x)+Ho(n,k,x),n=0..infinity); Using Maple. Thanks

 

I will be collecting motion data. I believe there will be high frequency errors in the data. I would like to convert the data into the frequency domain and view the frequency amplitude. (I have only a slight familiarity with the Fourier Series and Fourier Transform.)

Hi everybody, I have six coupled PDEs to solve. Because of complexity, Maple can not solve them at once, unless I solve three of them first and then satisfy the boundary conditions, then import them into the remaining equation. So it is somewhat semi-manually. The problem is, I do not know how to extract and modify the answer function from the answer of the PDE. Could you please let me know how I can modify the answer and put it back into the other equations? Thanx,

Hello,

Is there a command for displaying the name of the actual worksheet file in Maple?
I am looking for a similar command to currentdir(). It displays the actual file path. I would like to get also the file name of my actual worskheet file.
I would like to attach this information to my results automatically.
 

Thanks for your help in advance.

Dear All,

This's my first post on this website; I'm hoping I can get some useful ideas on how to approach a problem where a PDE is coupled with an ODE, with initial and boundary conditions.  I'm using Maple 12.

The PDE is,

PDE:=diff(g(x,t),t)=diff(g(x,t),x$2)

the ODE is,

ODE:=diff(f(t),t)=g(1,t)-f(t)

The initial and boundary conditions are,

IBC:={g(x,0)=0,f(0)=.2,D[1](g)(0,t)=0,D[1](g)(1,t)=-g(1,t)+f(t)

I'm trying to solve and plot,

sys:={PDE,ODE}

sol:=pdsolve(sys,IBC,[g,f],numeric,time=t,range=0..1)

hi,

i'm lookin forward for a latest algorithm in artificail intelligence so that i cld take seminar at my college,cld u help me?

Greetings All

I have a module written in mathematica that works but would prefer to use it as a maple 12 procedure.  I tired the MMA in maple but it doesn't convert programs.  Can someone please help out.

 

 

 

 

To anyone out there who may be able to help

I have been researching into closed-form solutions of the 2 x 2 case of the Matrix Differential Equations

dM(s)/ds = [ M(s) , D(s)/2 ]   ,    M(0) = Mo in sl(2,R)  ( 1 )

dD(s)/ds = [ M(s) , K(s) ]      ,     D(0) = Do in sl(2,R)  ( 2 )

dK(s)/ds = [ D(s)/2 , K(s) ]    ,    K(0) =  Ko in sl(2,R)  ( 3 )

Is it possible to print a hyperlink to the worksheet (programatically, not by clicking menu)? In Maple 13 worksheets are errors and warnings displayed as hyperlinks to web.

 

I have designed a Maplet that can load time series data from any selected csv file (data organized in columns) 

and plot such a time series with the help of a Dropdown list. I think such a functionality is something Maple is missing.

I would like to have a simple button in the Maple original meny where you can load such a maplet from.

However , the maplet still have some problems which I was wondering if someone could help me iron out :-)

I have attached the worksheet.

 



Hello,

I wanted to use the Split command of StringTools package and I realized that it is different from the Split command in Visual Basic.

In VB one can give a third argument to define the maximum numbers of splittings:
For example : in Visual Basic returns the array . , i.e.the function splits the string at the first occurrence of the ":".

It would be useful the improve this command in Maple to have this possibility.

I just use the Maple for one month, I want to use the Graph theory Draw a graph(networks) with 70 vertex, but the arrow of edges is always near  the beging point of 

arc, which lead to the arrow can't  be seen clearly, I want to change the sytle of edges by changing the arrow position , but I don't find a correct method , can anyone help me ? Thank you very much!  

how can i solve: cos(x+y)sin(x-y)=cosx-siny? PLEASE HELP!!

Hi guys, I am struggling with these three equations. The first is a nonlinear equation which can be solved numerically with the boundary conditions y(infinity)=0 and y'(0)=0. a1 := diff(y(r), r, r) = -2*(diff(y(r), r))/r-1.3*10^12*polylog(3/2, exp(b(u-y(r)))) Now y(r) depends parametrically on u and b which can be determined using these equations: a2 := -1.5*10^8*(int((3*polylog(5/2, exp(b(u-y(r))))/b^(5/2)+y(r)*polylog(3/2, exp(b(u-y(r))))/b^(3/2))*r^2, r = 0 .. 10)) = -129000 a3 := 3*10^8*(int(r^2*polylog(3/2, exp(b(u-y(r)))), r = 0 .. 10))/b^(3/2) = 1
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