Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Hi,

I have written several procedures (predefined function).

How do I make them a package?

So I just have to load it with "with(myfunctions):"

then I will be able to use thses functions.

 

I have had a look at
http://www.mapleprimes.com/forum/maplepackagemodule

not so sure if I understand all.

what function should I look it maple help?

 

Thanks in advance.

casper

Hi,

is it enough to check wether two lists are equal using "is(a=b)"?

a:=[1,2,3,1,5];b:=[1,2,3,5,4];c:=[1,2,3,1,5];

is(a=b);
    false

is(a=c);
    true

 

the results seem fine. Do I have to check each element? I just want to be sure of it.

 

Thanks.

 

casper

 

Hello there, I was wondering, is there some way to make the following task any easier? It requires a lot of work to plot this. I want to be able to do it in maple, easily, otherwise there must be other programs where vector plotting is easier? I really want to be able to do this easier. Thanks a lot. You can see the picture uploaded. http://img263.imageshack.us/img263/4193/vectorplot.png Also the necessary text i written below. We have the points A(-3,5), B(-1,8), C(3,6), D(8,-4) Draw vector AB, BC, CD and DA and determinate their coordinates. AB = 2,3 BC = 4,-2 CD = 5,-10

Hi!

I have to use code from older Versions of Maple which is for example of the form (only much longer)

> a := proc()
> local i;
> i := 89;
> i;
> end proc;
> a();

r := abs(z)^(Re(a)) * exp(-Im(a) * argument(z));
w:= r * abs(z)^(Im(a)*I) * (z/abs(z))^Re(a);

I want to see, that z^a = w.

But simplify(w) gives a wrong result, it differs from w:

tstData:= [z=1+3*I, a=-3+I];
z^a; eval(%, tstData):  evalf(%);
'w'; eval(%, tstData): evalf(%);
'simplify(w)'; eval(%, tstData): evalf(%);

tstData:= [z=-2*I, a=+I];
z^a; eval(%, tstData):  evalf(%);
'w'; eval(%, tstData): evalf(%);
'simplify(w)'; eval(%, tstData): evalf(%);

In the last case simplify(w) results in a purely real value,
while w has a nonvanishing imaginary part.

Hi,

I was looking at this page

http://www.maplesoft.com/support/help/Maple/view.aspx?path=ImportMatrix

However, it didnt mention how to save Matrix into Excel or CSV file.

Can Maple do that?

 

Thanks.

Casper

<p>Delete Implement of a Vector</p>
<p>example I have a vector </p>
<p>A:=<1,2,3,4,5>;</p>
<p>How to operate to give a vector have form</p>
<p>A:=<1,2,3,4>; or A:=<1,2,3>;</p>

Good Evening Everybody,

Would anybody show me how to subtract a scalar from each value in a list and output the results as list. Below is the problem am trying to solve, transforming the coordinate of the list to the origin (C.G). My goal is to output w =[ .....] and z = [.....]

 #msub(mi("x"),mi("coord")) := [0., 2., 8., 10., 5., 5., 7.5, 7.5, 2.5, 2.5, 

5.0, 5.0, 0]
#msub(mi("y"),mi("coord")) := [0., 10.0, 10.0, 0., 0., 2.0, 2.0, 3.0, 3.0,

Hi,

I am trying to save batch of data into different of files.

for i to nops(a) do
save a[i], "key_[i].m"
od;

Error, save can only save names

 

i.e. save each element in "a" to the file named "key_i" (key_1,key_2,key_3,ect)

how should I write the code?

Thanks.

casper

Hi,

I remember using 'global' in the procedure as a global parameter,

however, it's not working...

 

In my previous posts I discussed the basic difference between parallel programming and single threaded programming. I also showed how controlling access to shared variables can be used to solve some of those problems. For this post, I am going to discuss more difficulties of writing good parallel algorithms.

Here are some definitions used in this post:

  • scale: the ability of a program to get faster as more cores are available
  • load balancing: how effectively work is distributed over the available cores
  • coarse grained parallelism: parallelizing routines at a high level
  • fine grained parallelism: parallelizing routines at a low level

Consider the following example

As of 9th of Oct 2009

http://www.mapleprimes.com/mapleranking?sort=desc&order=Points
 

In the Belgium lottery they pick 6 numbers out of 42   (  there can't be 2 equals numbers being picked out )
Now for my maple homework , i must do some exercices in maple

1 ) Simulate the lottery
2 ) If you partici

In the Belgium lottery they pick 6 numbers out of 42   (  there can't be 2 equals numbers being picked out )
Now for my maple homework , i must do some exercices in maple

1 ) Simulate the lottery
2 ) If you partici

In the Belgium lottery they pick 6 numbers out of 42   (  there can't be 2 equals numbers being picked out )
Now for my maple homework , i must do some exercices in maple

1 ) Simulate the lottery
2 ) If you partici

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