Hello,

I have got a question. I have an Hamiltonianfunctionand want to differentiate this function to all variables. There is no problem with most of the variables, but one doesn't work. The error above occures, when I use the button "execute the entire worksheet". When I just press Enter, the errror does not occure and the right results are presented. But I am not abel to use the results.

Has anyone an idea how I can solve this problem?

Thanks in advance.

I do not have any experience with maple and have a homework assignment due tomorrow. I have been staring at a screen blankly for an hour now trying to research how to do this but have had no luck. Here is my problem...

compute the projection of w onto v. call proj w onto v "p" and let q be vector perpendicular to p so that p+q=w. plot all four vectors together.

I have no idea where to even begin. I can do this by hand but it's the computer stuff...

Hello.

After using my command FOR --DO (see the commands below of the attached file) I would like that appears only the last graphic ( and not the previous "plot"s neither the matrix ww).

How could be done it?

Thanks in advance,

Jean-Jacques.

#POUR FAIRE LE "FOR FROM BY TO DO"

max1:=60:
q:=1/2:

for w1 from 1/27 by 7/27 to 1/2 do

ww:= [seq( [n, add(1/(n+1), k=ceil(  max(0,(q-w1...

Hello, I am using maple 7 and I want to find all the solutions to a set of 4 equations with 4 variables.  These equations are all trigonometric.  fsolve of course only gives a single solution and using the avoid unction doesn't work.

I have tried to write something like this:

Sol1:=({equations},{vars})

Sol2:=({equations},{vars},avoid=Sol1)

and this always gives the same solution.  Any ideas?  Thank you.

Hey folks I have a question regarding how to fill an Array.

Lets say I do this...

Array(1..10, [seq(i, i=0..9)]);

This produces [0 1 2 3 4 5 6 7 8 9] as output which is fine.

Now lets say I want a 2x10 array (2 rows, 10 columns), the top row being the digits 0-9 (as above) and the second row being something else (in this case it is counting the number of times each digit appears in Pi)

I would like to use Maple to visualize some data produced by a computational geometry application I am working on.  However, my coordinate system is different than a standard cartesian system.  In my case, the positive Y direction is downward.

Can I re-orient the Y axis on a point plot to go downwards instead of upwards?

Hello,

Is there a way to export a file from Maple so that somebody without Maple can use ? My project is a dynamic one with components that need to be used by the "Reader".

Thanks,

Yaad

Introduction to this blog

From time to time, I find some problem with Maple. It is not always Maple's bug, sometimes it is just my mistake.

I am used to use "Submit Software Change Request " form, but I dont know how to trace my requests (and I even dont exactly remember which bugs I posted). Thus, I decided to publish my troubles in this blog.

Unless stated otherwise, all the troubles I specify bellow are obtained on the Mac OS X 10.5 PPC platform using Maple 14.01 ...

What is the equivalent of

Shift+Tab = move the cursor to the previous region

on linux?? it is listed as working on windowns/macs but not on linux.

Also is there a way to customize keyboard shortucts? I am a vim user and navigating around a document in maple's gui is really painful (by the way I work in the "worksheet" mode)

thank you.

I try to solve the following, but it have the error of singular. can any one help me solve it.

> restart;
> dsys1 := diff(y(x), `$`(x, 2))+(lambda*lambda)*y(x) = 0;
              / d  / d      \\         2        
              |--- |--- y(x...

I have two expression like,

exp1:=A1*x*(k-p*x)+A2*x+A3*p+A4

exp2:=A5*x*(k-p*x)

where A1, A2, A3, A4 and A5 are some lengthy expressions.

I need to find the division of these two, namely exp3

exp3:=exp1/exp2

in the form

exp3:=(A1/A5)+the rest

In other words, I need to extract the part which could be normalized by x*(k-p*x).

I need to know how to use Maple to solve group permutaions and Cayley tables

I wanted that the same X-axe represents 1-10, 100-110 and 500-510. I do not know if it is possible to have a kind of X-values that in the same graph shows  the Y-values for the 32 following points: 1,2,..9,10,100,101,..110,500, 501,502,..., 510 . If I consider all interval 1-510, I could not be able to apreciate the graphic.

Thanks for your attention Kirnyk.

Jean-Jacques

I'm trying to understand shooting method using maple in solving BVP. especially to solve boundary layer flow. I don't have any idea about the step size used and convergence criteria specified in shoot lib in the maple. Can anybody help me with this? Where can I refer to. Thank you

Could you give examples of differentiate differential form or integrate differential form using maple?