hi

I am new in LinearAlgebra and i have many question in it,

My problem is in this pdf files and i described in it my question.

Matrix.pdf

Hello,

I am using Maple 14 with Windows Vista OS and I would like to ask 2 questions:

1) Is there any possibility to change the width of a slider? I have 2 very similar source codes of the slider (one horizontal, one vertical). I would like to use the vertical one, but the biggest value does not appear correctly. This value should be "1000", but only "100" appears. In the horizontal case everything is OK.

Here are the source codes you can try:

L:=[[name,4,3,6,5],[3,5,name],[3,6,1,2,9,8]]   I want to remove name from the listlist or all 3's for example

I've tried

remove(has,L,3) which removes the entire sublists containing 3 so I tried

map(remove,`=`,L,3) but that doesn't work I thought since remove(`=`,L,3) worked on a flatlist that using map would work on the listlist or even map2(map,remove,`=`,L,3).  I can't figure it out.

And how do you use member on L?  I end...

Hello wizards,

I'm given to understand that using add() or if possible Task:-Add() is more efficient than a FOR...DO loop. Today I'm asking about the limits of this generalization. My illustration is probably missing some evalf's, but hopefully the concept is clear:

A computation I'm working on involves between 10E4 and 10E6 computations like

Occasionally I want to restrict a search of MaplePrimes to posts from a specific user.  Is that possible?

Hi, 

How can I create a matrix M by M with maple, where the elements of diagonal comes from b[i]=i+1 and the other elements comes from c[i,k]=i+k.

Amr

Using the Physics package I am trying to define commutation rules between operators. However it looks like when the commutator involves a Dagger, it is not "remembered" properly. Here is a (contrived) example (you might have to run it on your machine in case not clear from copy/paste what's going on):


restart:
with(Physics):

Setup(quantumoperators={a, b, c});
                ...

Hi:

How do I tell maple that some of my variables do not commute with each other?

For example i may have variables a_p and a_m which do not commute with each other, as well as s_x and s_y which also don't commute with each other... but a and s do commute. So basically I want maple to recognize that

a_m * a_p != a_p * a_m

but

a_m * x_s = x_s * a_m, etc..

... and be able to keep these rules when simplifying expressions.

Note,...

The code below changes the starting value of a to the last value of b (in Maple 14). Is that a feature?

> a := matrix(2, 2, [1, 2, 3, 4]);
> b := a;
> for i to 2 do for j to 2 do b[i, j] := (1/3)*b[i, j] end do end do;
> evalm(b);
> evalm(a);

I would like to include the current date in the filename when I use writedata.  How can I do that?

I know this doesn't work but I was trying to do something like this

  test:=[1,2,3,4,5,6]
  writedata("c:/data-FomatTime(%B%d%H%M).txt",test)

hi all

im reading documentation about mapleNET web services

"Currently the input strings must represent Maple 1-D expressions. The output will be Maple 1-D expressions."

what is Maple 1-D expressions?

Motion_of_a_Charged_.mw

Hi,

The procedure I uploaded, was originally written in C++. I made a text file and plot the file with C++ without any problem.

But in the maple version of the same program, when I use the command:

                          ...

I am using Maple to generate PDEs. I have expressions of the form p(dx,dy,dz, etc.) where p is a nonlinear polynomial. I would like to substitute d/dx for dx etc and then later apply the resulting differential equation to a function. I am having multiple problems with this.

1. Maple seems to be unable to handle a derivative unless there is a function for the derivative to act on. (This is not a huge issue, but it would be helpful.)

2. Even if I do specify a function Maple maps dx^3 to diff(f,x...

I would like to know how to plot different series of data on the same graph.

Thanks in Advance

hi all

in maplenet after next link  "/maplenet/imaging/image?maple=Histogram([1,2])"

i do not see image of Histogram, just image of formula 'Histogram([1,2])' , what need for generate image?