When presenting  t³ / t²  by programming

   $formula = maple("printf(MathML:-ExportPresentation(t^3/t^2))");

MapleTA will automatically simplify this to the result:  t

How can I force MapleTA to not simplify this expression?

Thanks!

We're are using Maple TA 8 at our university. I'm new to Maple TA and I would like to create an assigment with multiple choice questions about JavaScript and HTML. But I found the following problems when creating these MC questions:

1) Using < and > characters aren't allowed in the "Choices for the answers" fields. So I manually have to XML encode text containing these characters. Is there an easier way to do this? I would expect answers to be stored as plain...

The plot is fine until specifying the upper limit too high at which point the lower limit on the x axis is ignored from view. Works on Maple 12, does not in Maple 16.

@Markiyan Hirnyk Thanks for your helpful explanation.

But I have another problem related to PDE.

I used ((`@`(D, D))[1](f))(N,t)=0 for one of the bc but

I got an error.

pde.mw

I'm using Linearalgebra where I have a 10x1 matrix. I want to find the closest element of the matrix to origo, and the furthest away from origo. Can anyone help me to a understandable solution? :)

I adopted the approach suggested in an earlier post (http://www.mapleprimes.com

/questions/137320-Plotting-A-System-Of-Ode) for the known results,

but some part of curve is missing.

The output I got is

I need to write a recursive method to reverse a string.

The hint given is to convert the string inputed to a character sequence, then apply recursive method, then reverse character sequence, then convert back to  string and output it.

So "abcd" gives output "dcba"

I came up with what is below, but I don't know if that's a recursive method.

>with(StringTools):

>Reverse("abcd")

        "dcba"

Hello All ,

I would liek to know if ther is a way to tabulate the results in a matrix form , like matlab does .Each time i copy paste it in excel and do the text to colum to sort out the results.It would save me a lot of time if anyone has an idea about this.

Like in the file i have results of various parameters displayed but how do i tabulate it.

Steam_800_below_crit.mw

Hi folks,

I'm trying to find the x value of my data set that corresponds to 50% of area under the curve. I've used curvefitting and splines to generate a piecewise function, and am able to find the area under the curve between my two approximated zeros (as this is the only relevant region). I would greatly appreciate any help, as I've been pulling my hair out for a couple hours now!

Cheers!

Hi everyone,

Do you know how to displya this kind of things on the screen: 

[12 Elements Column Vector

Data Type: anything

Storage: rectangular

Order: Fortran_order]

I think it is just that the vector is too big, but I want to see it. Any suggestions?

Thanks.

have some problem with Numerical Integration this function:

 > f221 := (0.1255914626e-2*(375.*sin(2.*a)*cos(b)*cos(w)-150))*Heaviside(abs(375.*sin(2.*a)*cos(b)*cos(w)-375.*sin(a)^2*sin(b)*sin(w))-150.)*sin(a)*cos(b)^3*sin(w)*(1.+.25*cos(2.*b));

> evalf(Int(f221, [a = 0 .. 2*Pi, b = 0 .. (1/2)*Pi, w = 0 .. 2*Pi], method = _cuhre, epsilon = .1)) 

How can i take this integral and  decrease calculation's time? I was trying different...

Couple of questions, what did I do wrong to calculate time to fall as negative and how do I find how long it takes to reach certain velocity?

Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/my_skydive_problem.mw .

Download my_skydive_problem.mw

restart:
with(PDEtools):with(plots):
declare(u(x,y,t)):
PDE1:=diff(u(x,y,t),t$1)+a*u(x,y,t)*diff(u(x,y,t),x$1)+diff(u(x,y,t),x$3)+

b*diff(u(x,y,t),y$2)=0;
Sol1:=pdsolve(PDE1);

Test1:=pdetest(Sol1,PDE1);

params:={a=6,b=1,_C1=1,_C2=1,_C3=1,_C4=1};

Sol2:=subs(params,Sol1);

plot3d(subs(t=1,rhs(Sol2)),x=-10..10,y=-10..10,axes=boxed,grid=[50,50],

style=patchnogrid,shading=Z,orientation=[-40,50]);

Hi everyone

I have solved an ODE in Maple with the following command:

soln := dsolve({ode1, f(0) = 0, f(1) = 1, (D(f))(0) = 0, (D(f))(1) = 0}, f(eta), numeric)

where ode1 is:

ode1 := diff(f(eta), [`$`(eta, 4)])+R*(eta*(diff(f(eta), [`$`(eta, 3)]))+3*(diff(f(eta), [`$`(eta, 2)]))-f(eta)*(diff(f(eta), [`$`(eta, 3)]))+(diff(f(eta), eta))*(diff(f(eta), [`$`(eta, 2)]))) = 0

then I saved the soln plot in p1 as:

p1 := odeplot(soln, [eta, f(eta)...

Hi everyone,

Can somebody help me to make this code faster? Or if somebody have fast computer and can execute it and give me the result.

When I execute it, I don't have the result of the last command and get the error of not enough memory allocation or something.

Here is the code:

>restart;with(LinearAlgebra):with(VectorCalculus):with(linalg):
> a1:=1:
> a2:=1:
> T:=<x1,x2,x3,x4,y1,y2,y3,y4,u1,u2,u3,u4>:
>