I've submitted an application to the Application Center: An Epidemic Model (for Influenza or Zombies).  This is an interactive Maple document, suitable for instructional use in an undergraduate course in mathematical biology or differential equations, or a calculus course that include differential equations. ...

Hi, I've been introudeced to maple today and we were asked to think about how we'd write a two argument Ackermann code. I appreciate that computing power can lead to problems when workin gout this kind of recursive problem. I've done a bit of reading around but no joy on the maple front to be honest.

I thought the code may look like something like this but it's not right. Any thelp would be greatly appreciated!

# Ackermann-Peter function

I Follow the instructions to connect with matlab but when i type for example ( Matlab[setvar]("x",3.14);) it doesn't work.

i don't know why? my windows is 7 .

In Maple 14, some functions involving coth do not plot correctly when using "plot".

Example:

> restart;
rS := 10000; cS := 1; 
ZWarbSolid := rS*coth((((1/4)*rS*cS*I)*exp(2*Pi*freq))^.5)/(((1/4)*rS*cS*I)*exp(2*Pi*freq))^.5;
> with(plots); 
p1 := plot([Re(ZWarbSolid), -Im(ZWarbSolid), freq = .4 .. 3.4], color = red, scaling = constrained, style = point);p2 := plot([freq, -Im(ZWarbSolid), freq = .4 .. 3.4], color = blue, style = point...

Hello,

I am doing some complicated computations in Maple, and I noticed something was wrong. For some reason, Maple makes the sum of 1 a zero, although he knows that it is a 1.

this is the code:

I ‘d like to compute something as follows at certain r and z, but first I must compute the integral and then substituting the r and z values.

A(r, z) = int( f(r,z, teta), teta=0..0.78)

But the problem: f is a complicated function of the 3 variables (including BesselJ(0,..), sin & root square functions, ..!!) thus a simple int command...

Hi there

I have, for a while, been trying to find a way to force maple to display the unit im inputting. 

Im studying to be an engineer, and for an example the unit i often would like displayed is kilonewtons per square metre (kN/m2). 

Once i hit enter, maple converts it to Pa, which isnt really usable for me ... 

The question is, is there any way to stop maple from doing the conversion in output......

plot3d(x^2+y^2+2*x, x = 0 .. 3, y = sqrt(4-x^2) .. sqrt(9-x^2))

It will only plot as far as x = 2, except for one line.  Maybe because sqrt(4-x^2) is undefined for x > 2?

How can I plot over an annular region?

I have a procedure that gets two lists A and B, I want to restore the name of the entry lists as string. How can I do that?

f(A,B) [procedure]

e.g. a(MyList,LL)

I want to restore a:="MyList" and b="LL"

TIA

Hey guys,

Really struggling with computing an algorithm on maple for the Stable Marriage Problem? Would be so appreciative for any help. Thanks Claudio

Does anyone know how to create one in maple? please see the example attached..

Compute the coefficients of
> a:=`@@`(D,6)(u)^3; 
#and
> b:=`@@`(D,5)(u)*`@@`(D,6)(u)*`@@`(D,7)(u);
#in the differential polynomial
> c:=`@@`(D,18)(u^3);.

Helppppppp :) TIA

This is the Affine Scaling Algorithm outlined by:

Linear and nonlinear programming with Maple: an interactive, applications ...
Paul E. Fishback,Paul F. Fishback

I have two equations with weierstrass functions and got problem with fsolve: 

f1:=WeierstassZeta(z1-z2,0.1,2.)+z1=0:

f2:=WeierstrassZeta(z2-z1,0.1,2.)+z2=0:

fsolve({f1,f2});

results are like Weierstrass (z1-z2,....) which are not simplified even I add 'simplify' in fsolve. I want the values of z1 and z2 explicitly, i.e. z1= ,z2 . How can I fix this. Please help.

Thanks

Dear all,

I'm currently facing the following problem. I am trying to solve an expression for 4 variables: Fe11, Fe12, Fe21, Fe22. Actually these variables come from a 'deformation gradient tensor' Fe that is used in continuum mechanics.  This tensor actually appears in two equations in tensor-form. Since these tensorial equations contains 'inverse' and 'transpose' operators, the only thing I could think of to solve for a particular tensor (Fe), is to do this component-wise....