Hi everyone,

I am importing an .m file from MATLAB to Maple using the command: FromMFile(). The .m file uses a set of huge symbolic matrices with an output of a huge symbolic vector of 36 by 1. Each element of this vecot is supposed to form a second-order differential /or algebraic equation that I am planning to solve using the Maple DAE toolbox.

The problem I have is that while I execute the worksheet, Maple only evaluates the...

I have a system of equations:

> c := .67;
print(`output redirected...`); # input placeholder
                                    0.67
> r := `<,>`(r1, r2, r3);
print(`output redirected...`); # input placeholder
                       Vector[column](%id = 190246956)
> Y := `<,>`(gamma1(t), gamma2(t), gamma3(t));
print(`output redirected...`); # input placeholder
                       Vector[column](%id = 190247020)
> r1 := piecewise(gamma3(t...

I solved the following system using fourth order finite difference and shooting methed and i obtained the results below

but when i tried to solve it using dsolve in Maple I did not obtain the accuract results, I hope to know how to obtain accurate results with this system(the system is uploaded)

 restart; Pr := .72; a := 1; c := 1; lambda := 1; M := .2; lambda1 := .2; beta := 0; Ec := 0; A := 0; B := 0; R := 0;

sys := diff(f(t), `$`(t, 3...

Can someone please help me with the Maple language in solving the following equations?  I have already solved them by hand but I am new to Maple and am having difficulty with the coding language.  Here are the problems:

1.  Graph the parametric curve x=2t-pi*sin(t), y=2-pi*cos(t) from 0 to 20.  The curve forms loops, determine the arc length of one loop. 

2.  Graph the rose curve r=sin(4theta) in polar coordinates.  Determine the area of one pedal. 

How to make maple notify about calculated stage in example? As you can see fprintf+fflush doesnt work (hope stdout in maple has descriptor 0 as in others)...

eval_stage.mw

P.S. Don't wait procedure done. Just interrupt.

Hi im new to maple and i need help. I have 2 Matrix, and want to calculate the  angles. I tried very different functions, but i dont get forward.

Did anyone can help me by my problem.

For example:

MAtrix A: 0,999     |    0,012  |-0,002

             -0,012    |   0,975   |-0,218

     ...

I have some data which have a binary tree structure.

Is there a simple way to plot (at least partially) my binary tree?

How can I specify the step size in solving complex system of ordinary differential equations using RK45 with dsolve command???

Thanks,

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......