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MathiasPedersen1-Visitor
1-Visitor
February 21, 2011
Solved

Plot trajectory of a function?

  • February 21, 2011
  • 2 replies
  • 4748 views

Hello

I've plotted the function in a mathcad x-y plot:

1/12*(16x-9x^3)

And I'm trying to plot the trajectory aiming at the fixpoint when iterating it.

So that I get something like picture I attached. I know it's not the same function, but just for the purpose of explaination.

Thanks in advance

Best answer by AlanStevens

Like so?

Alan

2 replies

M
MikeArmstrong1-Visitor
1-Visitor
February 21, 2011

Would you be able to provide a worksheet?

Mike

http://communities.ptc.com/servlet/JiveServlet/showImage/2-149416-2532/bar_anim.gif

M
MathiasPedersen1-VisitorAuthor
1-Visitor
February 21, 2011

Hey Mike and thanks for the quick reply!

I can attach my own testworksheet, but right now it only has a function and then an x-y plot of the function.

I'm trying to show how the iteration of the function konverges to a fixpoint which is 2/3 in my example.

An example of it is shown here:

http://www.fh-kiel.de/fileadmin/data/wirtschaft/Dozenten/Thiemer__Andreas/MCD/sohmen.pdf

On page 4 at the bottom.

But sadly I cannot see how they plotted such a function.

A
AlanStevens19-TanzaniteAnswer
19-Tanzanite
February 21, 2011

Like so?

Alan

M
MathiasPedersen1-VisitorAuthor
1-Visitor
February 21, 2011

Yep exactly!

Thank you very much

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