I don't really have anything prepared for today, so I'd like to ask you a few questions about the posts I've made so far.  My goal for this blog was to give typical Maple programmers the information they needed to start trying parallel programming. 

1. My posts progressed fairly quickly, building up to the the Task Programming Model. Did I move too quickly?  Were there topics that I did not explain well enough or that you felt needed more explaination?
2. As my goal was to present the Task Programming Model, I skipped a deeper explaination of Threads:-Create style of programming.    Would you like to know more about that type of low level threaded programming?
3. Most of the examples I used were artifical ones that illustrated the points I was trying to make.  Would you have prefered real world examples instead?
4. Did reading my posts get you to actually try writing a parallel algorithm?  If yes, did you succeed?  If no, why not?
5. Was the formatting ok, especially the code?  Each post included an worksheet containing the examples from the post so I did not worry too much about ease of copy and paste.
6. What else would you like to know about?  I am definitely planning a post on GPU computing, but since it is not really a Maple topic I delayed it till after I am finished with the Maple topics.

Any other feedback you would like to provide would also be appreciated, although I'd like to keep focused on the topics discussed in my blog, and less about Maple in general.

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I use maple sovle an optimality question with hamilton function, but the results are quite different from the given result using matlab. I do not know where I'm wrong ,so can anybody help me ?

Thank you very much!

 

I am trying to fit the solution from  one nonlinear ode and compare with a set of experimental data. How can I  do this ?.

Thanks in advance... and  any comment will be usefull.

 

 

 

 

> restart; with(plots); with(plottools);
> mirror := proc (x) options operator, arrow; x^2 end proc; slope := proc (x) options operator, arrow; 2*x end proc; width := .5; height := 1; n := 25;
> mirrorplot := plot(mirror(x), x = -width .. width, y = 0 .. height, axes = NONE, scaling = CONSTRAINED, color = black); display(mirrorplot);

To install in linux do I type:

./installMapleLinux -i console

in the appropriate directory ?

 

thanks

i am from indonesi..

i using windows vista.. but i can not use maple 9..

what version  compatible for vista???

p := display(seq(cutout(v, 4/5), v = stellate(dodecahedron(), 3)), style = PATCH);

q := display(cutout(icosahedron([0, 0, 0], 2.2), 7/8));

display(p, q, scaling = CONSTRAINED, title = `Nested Polyhedra`)

Hello,

when using Maple to do simple calculus I usually have to explicitly
state the dependence of each variable in the expression....for example

c*(1-cos(x[1](t)))+x[2](t)^2/2

is there a way to declare generic functions of a dependent variable
say

x1 = x1(t) or x2 = x2(x,y,z)

and avoid having to do it repeatedly in an expression?  I know i can use subs to replace patterns, but can you declare somthing like f(x,y,z,t) without giving the details?

Thank you

hi! i get the following error when i try to see response to my thread coeff problem in maple 13. Fatal error: Call to undefined function getgif() in C:\xampp\htdocs\modules\maplemath\maplemath.module on line 30 how can i fix it?

What's wrong (Why isn't Maple responding 'True')?

restart;

assume(n, natural);

evalb(sum(binomial(n, k)*x^(n-k)*y^k, k = 0 .. n) = (y+x)^n);

false

simplify(sum(binomial(n, k)*x^(n-k)*y^k, k = 0 .. n));

(y+x)^n~

The last line shows it's supposed to be true... it's the binomial theorem. Is there something i'm missing?

hi! i've the following problem, that i can't figure out using maple. i've the following polynomial which i tried to extract the coefficients using maple con:=(-2/(3*lambda^3)+1/(30*lambda)+4/(5*lambda^5))*t^2+(-(1/2)*sqrt(2)/lambda^4+(1/3)*sqrt(2)/lambda^2)*t^(3/2)+(-1/(3*lambda)+2/(3*lambda^3))*t-(1/2)*sqrt(2)*sqrt(t)/lambda^2+1/lambda+(1/2)*sqrt(2)*ln(lambda)/sqrt(t) with the following command: sum(coeff(con,t^(-1/2+k)),k=0..3) but this does not work. however i'm able to extract the coefficiets if i.e. i specify the order of t. can anyone please help

Hi,

 

I have a function of two variables defined implicitly, from which I'd like to get a data table. Simplified example

XY = 2 .... Generate

 

X    Y

1    2

2    4

3    0.666

4    0.5

 

Of course, Actual function is much more complex, Solving for one X in terms of Y not possible

This may be a quite basic problem, but I've been looking for a long time for a solution and could not find any.

Let's assume I have a function:

f:=(x)->exp(a*x);

Now I do diff(f(x), x);

How to make maple return result in a form: f(x)*a instead of a*exp(a*x)?

Ofcourse I would be very grateful for a solution which can do the same with nested functions and expressions...

View 11608_differential equations.mw on MapleNet or Download 11608_differential equations.mw
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I'm really struggling with plotting non linear equations onto maple.

I can plot Linear ones with DEtools quite easily, but struggle with Non Linear equations. I've tried PDEtools but not sure if thats relevant.

Trying to plot/display Basin of Attraction;

D(x)(t) = y
D(y)(t) = -ksinx      (can take k = -1)

Any ideas ?