I have a system of 4 rational equations involving 6 variables. I want to solve this system for 4 variables. 

Whenver I try to do this I get either an error message about solutions being lost, or maple being unable to allocate enough memory.

The Commands involved are here: 

Hello,

I use Maple to solve dynamics of multibody systems. In the mechanical system i study, all my kinematic schemes use the parameter gamma and the project i work on, many people use the parameter gamma.

The issue is that i use the parameter gamma(t) depending of the time and if i use this parameter Maple treat this parameter as the Euler constant gamma and consequently make bad simplifications.

Is it possible to add a code lign to desactivate this...

An indefinite integral cancels out one differentiation:

int(diff(w(s),s,s),s)=diff(w(s),s);

But for a definite integral Maple does not recognize that:

int(diff(w(s),s,s),s=0..L) = int(diff(w(s),s,s),s=0..L);

What I would have expected is something like:

int(diff(w(s),s,s),s=0..L) = eval(diff(w(s),s),s=L)-eval(diff(w(s),s),s=0);

I cannot get Maple to recognize this even when assuming real or positive.

What I am really after is this: w(s...

Good morning sir,

I request you to support me How to generate the maple procedure for QR-Method in linear Algebra?

Good morning sir,

I request you to support me How to generate the iterations for Powermethod?

using Maple commands.

Hi,

While using pdsolve for a coupled system of pdes, the maple results doen't match with the desired ones.

Here is the system

restart:

Eq1:=diff(f(eta,tau),eta$3)+(f(eta,tau)+h(eta,tau))*diff(f(eta,tau),eta$2)-diff(f(eta,tau),eta$1)^2

+(1+epsilon*cos(Pi*tau))*theta(eta,tau)=Omega*diff(f(eta,tau),tau);

Eq2:=diff(h(eta,tau),eta$3)+(f(eta,tau)+h(eta,tau))*diff(h(eta,tau),eta$2)-diff(h(eta,tau),eta$1)^2

+c*(1+epsilon*cos(Pi*tau...

Hello,

I just installed maple 15 as well as the latest update. However, when I was trying to plot, it gives me this:

Which had never happened before I reinstall my operation system.

Could anyone help me please? Thanks a lot!

I have a variable with some assumptions: assume(0<=W<=1).

Now, when I make a list and sort it, everything goes fine:

k := [W, (1/3)*W, (1/3)*W, (1/3)*W]:
sort(k, (a,b)->is(a>b))

I get [(1/3)W, (1/3)W, (1/3)W, W] as expected.

Now I try this:

k:= Vector[column]([W, (1/3)*W, (1/3)*W, (1/3)*W]) 
sort(k, (a,b)->is(a>b))

And Maple gets stuck on this computation. I have tried on both Windows and Linux, on several different computers.

ASK.zip

Hi all,

In short, I want to use

'ss' expression(1)

to simplify

'kappa' expression (2).

At the moment, I can only archieve it through solving for each variable and get to expression (5).

simplify using siderules failes in this case. Is there another way to do it?

Thanks,

Casper

Hi folks, the package PDEtools has a nice command declare that allow us to display PDEs using jet notation: say f[x]-g[y] instead of diff(f(x,y),x)-diff(g(x,y),y) but when I try to export it to LaTeX or just trying to copy and paste the display in a text file, I always get the long expression. If I try to copy as MathML I got junk... Any ideas on how to copy an expression displayed in jet notation to a text document?

Voting is open for the next individual prize to be awarded as part of the Möbius App Challenge.  The winner will receive an iPad Prize Pack! 

Here are the finalist Apps:

• Parameterized Curves
• ODE Systems

Voting is open for the next individual prize to be awarded as part of the Möbius App Challenge.  The winner will receive an iPad Prize Pack! 

Here are the finalist Apps:

• Parameterized Curves
• ODE Systems

Hello, I would like to use the LeastSquares subpackage in the LinearAlgebra package in order to solve the following problem:

Set of data: (1.0,2.33),(2.0,0.0626),(3.0,-2.16),(4.0,-2.45),(5.0,-0.357),(6.0,2.21),(7.0,2.75),(8.0,0.636),(9.0,-2.45).

I am trying to put the above data in the curve y=a+b*cos(x)+c*sin(x)+d*cos(2x)+e*sin(2x).

My attempt to solve this:

restart;

with(LinearAlgebra);