How can I round off the numbers in a random array or matrix?  Round or Trunc will not work on a random number.

with(ArrayTools):
a:=30*(ArrayTools:-RandomArray(8,8));

 

I replied to the following thread but after further thought I probably start a new thread:

http://www.mapleprimes.com/forum/multivariate-directional-derivative-0

hey all

I want to write an algorithm similar to this but instead of ''w1:=a+h''   I have to put about 75 commands. how can i do this?

 

Can someone help me please?

 

Hello all!

I am an Open University student just starting with Maple 11. I am studying the course MS325 Computer Algebra, Chaos and Simulations and we have to use the classic interface.

I use Fedora 11 Linux on my Acer Aspire One netbook. I have loaded Maple 11 for Linux, and the standard version opens OK by using ./xmaple

But if I try to open the classic interface with ./maple -cw

I get this:

I know it is possible to change the "Look and Feel" of Java applications, and i was wondering if there was any way to do this on Maple? (Maple 13 for Linux, to be exact.) 

What am i doing wrong?

 

> restart;
>
> g := .2189750324;


> m2 := 1;

> a := 1;

> c2 := -1;

> equation2 := y = m2*X+c2; 

> area1 := int(equation2, X = g .. a, numeric);

Error, (in int) invalid arguments

 

Can i make an algorithm like this in maple?

w= 4

for k= 1 to 10 do

             for h = 1 to 20 do

                      for a = 4 to 15 do

                               w1= a+hk

Objective: plot a graph from data drawn from two arrays. I would like to have the data points marked with a symbol (point, circle, or diamond, etc.) on the graph. How do I do that? Following is the code: -- two arrays of data point: engineeringStress and epsilon(engineering strain) -- Zip is used to put two arrays into data points (x,y) to create stressStrainData -- plot is used to graph The plot shows a line; I would like to have the data points marked (visibly seen) on the graph. Thanks. --mdc > restart; > with(plots); with(plottools);

Hallo,

I would like to create a literal subscript using a mac and international keyboard.

Unfortunately the symbol on the expression palette does not work so I need to use a keyboard shortcut. I have been searching the internet and maple help for hours, but I cannot find it. What I did find is:

http://www.maplesoft.com/support/help/AddOns/view.aspx?path=worksheet/documenting/2DMathShortcutKeys

Hi all,

Is there a way to call Eigenvectors(), order the returned eigenvalues from largest to smallest, and have the returned eigenvectors reflect this ordering? I've tried a sort() on the eigenvalues which orders them successfully, but I can't seem to figure out how to apply the ordering changes to my eigenvectors.

Hi all,

I am trying to substitute 2 solutions from each loop into a general matrix but i cannot do this.

 

File attached.

 

Thank you,View 11295_loop pra.mw on MapleNet or Download 11295_loop pra.mw
View file details

How do I calculate the derivative of C(r,t) with respect to r evaluated at r=a? I can do it in multiple lines like this:

temp:=diff(C(r,t),r);

r:=a;

R:=temp;

r:='r';

But this is a pretty ghetto way of doing this, how do I solve for R in one line? I thought diff or D could do it but I can't seem to get the syntax right :(

Thanks.

From the program below