hello

I have a large data series and i need to get derivative (numerical derivative) of them. how can Ido it?

So there is a maximum number of conditions that one can set... good to know!

I tried your solution, and it does work. I'll just have to determine the values of my b1 and b2 parameters with a little programming.

Thank you very much!

Hi there, 

I want to know how I can animate a plot with more than one parameter? I can manage animating a plot with one parameter, using the 'animate' command, but this seems to be limited to a single parameter.

How could I do it? If it is not possivle in Maple 11, would such an option be implemented in Maple 15?

Also: If I would want to animate other things than plots, are there commands for that in Maple 11 / 15?

Thx :)

When I solve a certain equation I get a list of solutions t as below. I want to select some of the solutions and assign them to variables. In the program I am writing the number of items in the list of solutions will vary and so I cannot really select the list item by using t[3].t[4] etc. for example. 

I want to be able to select only the list items with say a square root sign or another term such as Pi, beta etc that appears in the list of solutions. So...

As I did not upgrade to Maple 14 when it came out, I am interested to know the differences between v15 and v13. Obviously, it is easy to get a comparison between v15 and v14, as all I need to do is study the promotional advertising. But is there a way of getting a comparison list between v15 and v13 ?

thanks,

Andrew

How do I standardize the size of ALL plots in a document or worksheet?

If I use

plot(Im(arctanh(x)),x=-2..2);

for |x|>1 I get a constant imaginary part of -sign(x) Pi/2.

Is this correct and if so can anyone help me understand why this is so?

Hi there,

I'm looking to merge the following two lists:

L:=[[1,1,1,1,1],[1,1,1,1,1],[1,1]]

M:=[[],[],[],[],[],[0],[],[],[],[],[0],[],[]]

In the following way:

N:=[[1,1,1,1,1],[0],[1,1,1,1,1],[0],[1,1]]

Basically so it takes alternate terms (i.e. L[1], M[1], L[2], M[2] etc.)

Any help would be appreciated!

Thanks, Sam

Hello,

I am trying to solve the following differential coupled system :

DN:=diff(N(x),x)=a/4*(x+8*(sin(F(x)))^2/x)*N(x)*diff(F(x),x)^2;

Du:=diff(u(x),x)=a/8*((x^2+8*(sin(F(x)))^2)*(1-u(x)/x)*diff(F(x),x)^2+2*(sin(F(x)))^2+4*(sin(F(x)))^4/x^2);

DDF:=diff(F(x),x$2)=1/(N(x)*(1-u(x)/x)*(x^2+8*(sin(F(x)))^2))*(-(x^2+8*(sin(F(x)))^2)*diff(N(x),x)*(1-u(x)/x)*diff(F(x),x)+(1+4*(sin(F(x)))^2/x^2+4*(1-u(x)/x)*diff(F(x),x)^2)*N(x)*sin(2*F(x...

Hello:

I have Maple 13 and I get the following error message "Error, (in pdsolve/numeric) unable to handle elliptic PDEs" while trying to solve a set of PDEs.

Does Maple 15 solve elliptic PDEs?

Thanks,

Amit

Hi
I wrote a loop which is too long but I need its continuity so I wrote all of them in one loop.
The problem is too much time is needed to run it,even maple cannot run it.
I do not know whether my software has a problem or the way I wrote the program is wrong.
I attached the file.
thanks
result2_with_op90_to.mw

Hi! I have been searching the forum, but with no luck.  How do I get maple to handle graphs with multiple edges between vertices?  I can't seem to find a function for this.  Does one exist?  I tried to do this by coloring the edges, but they just get re-colored.

EE1:=[1, 2], [3, 1], [2, 3], [4, 5], [6, 4], [5, 6], [7, 8], [9, 7], [8, 9];
EE2:=[2, 3], [4, 2], [3, 4], [5, 6], [7, 5], [6, 7], [1, 8], [9, 1], [8, 9];
EE3:=[3, 4], [5, 3], [4, 5], [6, 7...

Not sure how to do this.  What I want to do is use maple to grab an RSS feed from the internet and use maple to put it into a readable format

In particular from this website http://tomorrowsgaspricetoday.com/city/Hamilton/ and getting the rss feed xml style webpage from here http://tomorrowsgaspricetoday.com/rssfeed.php?city=16

phi:=array(1..3):

for q to 3 do

     phi[q] := x->p q x;

end do

Output

       phi[1]:= 

          phi[2]:=

How to solve the following system of differentials equations using Maple:

f'' - g' + g =sin x

g' - g + f = cos x

subject to the initial conditions:

f(0)= 2, g(0)=1 , f'(0)=-1