Maple is saying 'Error, Vector index out of range'. Can you see how maple executes all steps, so I can see where exactly the problem is?

http://www.maplesoft.com/applications/view.aspx?SID=33040&view=html

it can calculate from numeric data, is it the end?

where do multiset coming from?

if given a multiset, and calculate its power sums, then i express this power sums in terms of symmetirc polynomials, what is the purpose of this?

I often have to create density plots with many (thousands of) points. Hence the first thing I do when I install a new version of maple on linux, is edit dir_of_maple/bin/maple so that

JAVAHEAP=512

is instead

JAVAHEAP=4096

I have done this for years and never have any memory problems. But recently I have sent my code to someone who runs Windows and they seem to have "out of memory" issues when trying to do density plots of large datasets.

Hello,

I am trying to modify Maple code so I have a vertical spring with a mass starting at (0,0). The spring with the mass should move right and left along x. My vertical spring move up instead of down while the mass move to the right .

Any Idea about how I can get the right movement of the spring?

Please ignore the equation eq since I am only trying to have an animation spring with a mass.

 Thank you

Hello

I've to do some geometric work ; the problem is that it seems to me there will be no other solution than trying a different approach of the problem, due to huge amount of time required by computation...

However, I would have liked to learn how my program can be fastened. I've heard of multi threaded programming model ; could it be applied here ?

To simplify, I have a initial point (its coordinates). My procedure...

I just bought Maple 17 and tried to find a couple of Newman-Penrose spin coefficients.  I can do it by hand, but when I try to do the same thing using Maple I am stuck.  Maple lets me define an orthogonal tetrad, then I convert that to a null tetrad.  But how do I then fiind spin coefficients?  I know Maple has an entire list of metrics (385) already loaded, but I need to investigate different Petrov types to develop a metric.  Thanks.

I have a message, "I Didn't See That Double Rainbow!" and i want to encrypt it by making all the characters UpperCase first and removing all punctuation. I used IsUpper to remove the punctuation. Now I want to separate my new scrambled message into BLOCKS OF 5 LETTERS SEPARATED BY SPACES. Any ideas on how to do that using the "printf" command?

with(StringTools):
Alphabet:="THEQUICKBROWNFXJMPSVLAZYDG";
        ...

Hi,

I am using the function simplify in order to simplify some big expressions I have. The poblem is:

I have the expression F=F(x1,x2,x3,......,xn)  and if I evaluate the two following expressions

expr1 = subs(x1=a, x2=b, x3 =c , .......,xn=d, F) = F1    (scalar)

expr2 = subs(x1=a, x2=b, x3 =c , .......,xn=d, simplify(F) ) = F2    (scalar)

Normally F1 and F2 are equal  ( F1=F2 ) but what I really get...

I've downloaded and installed Maple, but I can't activate it. Whevener I try and activate it from within the program, it freezes, and when I click Activate Maple on the Start screen nothing happens. I tried the offline activation service, copied the licence.dat file into the Maple license folder, but when I tried to open Maple it still said license file missing or invalid.

I'm using a license provided by my university, and I'm running Windows 8.

Hi when i'm trying to solve, i get the following warning: Warning, solutions may have been lost.

The equations i'm trying to solve are the following:

> P := 21000;

> v := 10/(60*1000);

> r := 983;

> Cp := 4181;

> Tl := 40;

> K1 := 124.27;

> K2 := 102.03;

> K3 := 7.23;

> K4 := 2.947;

> eqn1 := P = v*Cp*r*(Tf-Tr);

unable to handle elliptic PDEs
 Does this error mean that I can/t solve my PDE system by Maple?

l1 := 2*(diff(ur(e, t), t))+(1+tanh((1/20)*e))*(diff(ui(e, t), `$`(e, 2)))+2*a*(ui(e, t)*ur(e, t)*ur(e, t)+(ui(e, t)*ui(e, t))*ui(e, t))+m*ui(e, t)*(diff(ur(e, t)^2, e))+m*ui(e, t)*(diff(ui(e, t)*ui(e, t), e)) = 0

l2 := -2*(diff(ui(e, t), t))+(1+tanh((1/20)*e))*(diff(ur(e, t), `$`(e, 2)))+2*a*(ur(e, t)^3+ur(e, t)*ui(e, t)^2)+m*ur(e, t)*(diff(ur(e, t)^2, e))+m*ur(e, t)*(diff(ui(e, t)^2, e)) = 0...

Hello

How does Maple create a graph from a 100000 elements vector (or a function that outputs that values)?

Does it plot some and reject others? plot all on top of each other? How can I change this behaviour?

How could I crate a graph where for every interval I see the max and min values, as in the trading "bar" charts?
(or any other idea to visualize that much info without needing to previously calculate intervals, mins and maxs myself)

How can I set  the boundary conditions? I need to specify diff(ui(e, t), e) and diff(ur(e,t),e) depending on e.  I write the rules:

> D1(e,t):=diff(ui(e,t),e);

 
> D12(e,t):=diff(ur(e,t),e);

 in order to use D1 and D12 in boundary conditions. 

I get error
> sol := pdsolve(sys, {D1(-500, t), D1(500, t) = 0, D12(-500, t) = 0, D12(500, t) = 0, ui(-500, t) = 0, ui(0, t) = 0, ui(500, t...

quandl (http://www.quandl.com/) has a great feature called superset (you need a free acount)
where the user can combine different data variables (4 000 000 to choice from) into a big
dataset (csv file) that can be downloaded from a permenant web url. This a great data feed
for maple. The problem is however that you have to use stringtools (quite messy) in maple to
extract the data. Hence, it would be great to have a simple procedure that only needs the web