I guess someone is kidding with me...

I want unsubscribing of this s... place!

when calculating the following equations

int( exp(t*int( (m/2*(diff(x, t))^2-exp(x)), t)), x)

maple give

-Ei(1, t^2*exp(x))

what is Ei? how to show result normally?

I'm using Maple 14 on OSX 10.5.8.  I have a lot of expressions that look like this:

(which doesn't seem to be rendering here...so in 1D form)

sum(a[n+2]*x^n*(n+1)*(n+2), n = 1 .. infinity)

My problem is the when using default fonts and 100% zoom the plus signs in the subscripts aren't...

I'm hoping that someone can help with this.  Below is an example of what I would like to do (part of a larger application):

> roll := rand(0 .. 1);

> roll();> s0 := %;                              

> roll();> s1 := %;                

With each execution, this will yield values for s0 and s1 that are randomly...

SADE is a package used for symmetry analysis of differential equations. I downloaded the package from the link http://cpc.cs.qub.ac.uk/authorIndex/AUTHOR_F.html. But unfortunately, I even couldn't execute the examples given by the authors of the SADE. Please inform be about installing the package in Maple 14.

So, I've defined procedures in a .mw file and now I want to somehow read this file into another worksheet, in order use the aforementioned procedures. Is this doable? I've unsuccessfully tried using the READ command. The error messages I get are :

Error, on line 1, syntax error, character `?` unexpected:

<?xml version="1.0" encoding="UTF-8"?>

Error, while reading ``file.mw``

Not sure where to go from here. Any help would be great!

Hi,

I am trying to graph some curve C and the vectors from the vector field corresponding to t=1 and t=-1.

My Vector Field is defined by some F(x,y,z) and my Curve is some r(t) [didn't bother putting the actual values here since I only want a general expression...]

In other words I want to have some kind of a curve in 3D with vectors coming out at points t=+/-1 along the curve itself. Is there any way to do such thing?

Thanks!

If one types

seq(cos((n mod 3)*Pi,n=2..13);

Maple returns, correctly,

1,1,-1,1,1,-1,1,1,-1,1,1,-1

If one types

sum(cos((n mod 3)*Pi),n=2..13);  # surely the sum of the above sequence = 4

Maple returns, incorrectly, the value 1.

Sure enough, if one types

sum(cos((n mod 3)*Pi)*exp(n),n=2..13); # expecting the sum of e^n with every third term negative

Maple returns

e^2-e^3+e^4-e^5+e^6-e^7+e^8-e^9+e^10-e11+e^12-e^13  ...

How do I plot a Matrix's columns independently in a same display[plot].

A=Matrix(m,n)

plot(Column(A,1),Column(A,2),..,Column(A,n))

Gracias

Hi,

I would like the title of my y axis to say "SaO_² (%)".  When I put in "SaO[2] (%)" the output is SaO[2] (%); However, when I put in SaO[2] (%) the output is "SaO₂ PLOT (...) "  How can I get both parts correct (i.e., the subscript of the 2 and the displaying of the percent sign)?

Thanks!

hello i  hope if you can help me.

 i have a problem solving this recurrence relation and how to insert if statemen (about  with for loop

and using the series and the solution should be

1-2y(2)-6y(3)-14y(4)=0

y(2)-y(3)-11y(4)=0;

-y(2)+3y(3)+8y(4)=0;

Hi, Im trying to show the first few energy levels of a particle in a 1-D box. The plots are looking how i want them to look, but i can't stop it from producing loads of unwanted code. It seems to have been produced from P1 and P2 and putting a colon after them doesn't supress the output.

Can anyone see how i can stop the blue code from being shown and keep the plots?

I just copied this from the Maple 14 documentation

f := proc( { [color,colour]::symbol := RED } )
    sprintf("color=%a   colour=%a", color, colour)
end proc;

to get

"Error, invalid procedure parameters"

Anyone any ideas? It's the same in Maple 12 and 13.

Hello again!

I am writing a procedure of which the body is done, I "only" need to take care of the input in a clever way, which is where I'm stuck. I want to make it as simple as possible for the end user. The procedure has the following parameters:

- 2 matrices of type 'Matrix' [required], say A and B

- either a list L (default []) or a symbol S (but one of them is required)

- an optional symbol v::symbol:=t

What's the best way of handling these?

Let's say I have a summation:

Is there a way to extract the expression being summed?

I've experimented with patmatch, but haven't been able to make it work.