Hi all,

I have the following equation: A.X = Y

A is a 14x7 known matrix, Y is a 14x1 known matrix, and X is a 7x1 unknown matrix Would you please how to find the solution X of this equation in Maple.

Thank you so much,

STH

PS: I attached matrices A and Y in this post
A.txt
Y.txt

Dear friends, I recently answered a query concerning the action of the automorphism group of the Petersen graph on its edges at math.stackexchange.com. The algorithm that I present is quite naive, but it does produce the desired result. I thought I would share it here because it makes a nice Maple programming exercise e.g. for a talented student at high school level. (I have always thought that Polya counting and permutation groups belong into the high school curriculum.) It makes extensive use of Maple's internal hash function for compound objects to efficiently compare them during the computation. It is quite interesting to observe how Maple does work hard for several minutes to do this computation and then comes up with the correct answer. (Obviously the core computation needs to be done only once.) Enjoy!

Best regards, Marko Riedel

If you come up with a better algorithm then please do share it at the stackexchange link.

Important update Mar 24 2016. The algorithm at the above post is middling to say the least, but can perhaps serve as an example of Maple computational techniques. There is an efficient algorithm including Maple code here at math.stackexchange.com.

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After upgrading to Maple 16.02, the Maple code:

eqn3:=diff(y(x),x)=x+sin(y(x));
IC3:=[y(0)=2,y(3)=0];
DEplot(eqn3,[y(x)],x=-5..5,IC3,y=-5..5,arrows=comet,linecolor=BLACK);

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I have tried the same code on two different machines running Maple 16.02 with identical results.  I have also tried the code on Maple 16.01.  In this case the solution curves are produced.

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hi all;

my orginal function is :

f(x)=(29/2)*x^2-(899/24)*x^4+(26941/720)*x^6+...

i want plot pade approximation and orginal function in the maple 14, i wrote command as follows:

is my command  Correct?    

> with(numapprox);
> f := (29/2)*x^2-(899/24)*x^4+(26941/720)*x^6;
> e := pade(f, x, [5, 4]);
> with(plots);
> P := plot(f, x = 0 .. 1, style = point, color = "SteelBlue");

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A plot command with the only argument of

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Error, (in DynamicSystems:-AlgEquation) algebraic equations cannot depend on past/future values of the input/output

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hi, i have a function in Infinite seri's with one unknown parameter and i want to solve it.
I use pade approximation in the MAPLE 15.
is it true!?
this is my function :

f(x)=(29/2)*x^2-(899/24)*x^4+(26941/720)*x^6+...

written in maple:

> f := (29/2)*x^2-(899/24)*x^4+(26941/720)*x^6;
> with(numapprox); pade(f, x, [5, 4]);

please help me

thank you