Hello!

I made an upgrade from Maple 13 to 14, but a program i wrote with maple 13 (ode event handling) simply is incorrect in maple 14. The events aren't recognized anymore. What is the problem?

Thank You.

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...

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.

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.

I have a matrix (M) and it has both 0 and 1 as entries. I want to have a sequence/list of all indices associated with the entries equal to one (the others are irrelevant to me). I can use a nested for loop with an if statement, but I find that the easy way out and not very pretty. Is there is more sophisticated way, hopefully faster way of achieving this (using sequences, attributes, select/remove)?

Example:

M:=Matrix([[1,1,0],[0,0,1],[1,0,1]]);

Hi!

Problem: How can I prevent Maple from checking against the simplification table?

Eg.

I enter

f := 5 y z x + 3 x^2;

and 5zyx + 3x^2 is returned.

Then I enter

g := 3 x^2 + 5 x y z;

and again 5zyx + 3 x^2 is returned, but not wanted, because I wanted to have a different (visual) representation of the polynomial.

How can I prevent this? Or how can I delete the first representation from the simplification...

I finished this lab for my Differental equations class today. The computer I was using is not linked to a printer. I saved it and went to open it on a differnet compter and I got an error saying there are problems with the loading process.  I tried reopening it on the computer I started with and I get the same error

The lab has three parts. The first two parts were part of the the professors instructions and introduction. Those parts load up. The third part is...

With f := i->`if`(i = 0, 1, alpha), I'd like to evaluate expression A below entirely symbolically, i.e. with l=1..3 being replaced with l=1..h in

sum('sum(sum(f(i)*f(i+j), i = 0 .. l-1), j = 1 .. h-l)', l = 1 .. 3); subs(alpha = .3, h = 3, %);#A

but using  A with l= 1 .. h provides a different number, the one one obtains with

sum(sum(sum(f(i)*f(i+j), i = 0 .. l-1), j = 1 .. h-l), l = 1 .. h); subs(alpha = .3, h = 3, %); #B

Expressions...

Download FreeFallEquivalen.mw

Hi,

I'm new to Maple; well, I've been 'away' from Maple for a number of years and now I have several compelling reasons to get back into the thick of parts of Maple.

I constructed a very simple ODE model of dropping a mass from a height h and letting it hit a massless platter on a spring, with the other end of the spring connected ground.  One...

Hello

I'm trying to animate a DEplot3d, but is that even possible? If it is, how?

Budgie

with(gfun):

> s := series(sin(x), x, 9); seriestoalgeq(s, y(x));
                  1  3    1   5    1    7    / 9\
              x - - x  + --- x  - ---- x  + O\x /
         ...

How could I have information of serial of a hard disk in Maple? Thank you very much!

Hello,

Using Maplets Elements I'm trying to program some inputs which I then want to use to solve a differential equation. My Problem is that my inputs are somehow in the wrong data type. I actually don't even know what data type they are, but it's not string and no number as I can't calculate with them.

I do have a little programming experience (php, Java, C++) but it's my 1st maple program which I need for school.

My code so far is:

________________

I have to answer the following question:

simulate a modified simple random walk starting at 0 which at each step, in addition to possible unit jumps to the right (with probability p) and to the left (with prob q), may stay at its current position with probability r>0, so that p+q+r=1. We have been given the hint to type in

if (u<p) then x:=1 else if (u<p+q) then x:=-1 else x:=0 fi; fi;

and to rename the procedure, but i have no idea how to carry out the simulation?

dy/dx=(y²-1)/(x²-1),  y(2)=2