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Topic: Calculating a function
Replies: 6   Last Post: Mar 5, 2014 6:01 PM

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 canon Posts: 4 Registered: 3/4/14
Re: Calculating a function
Posted: Mar 4, 2014 8:37 PM

TideMan <mulgor@gmail.com> wrote in message <4cf3e6a3-0939-448a-8bc7-61c486eb8de9@googlegroups.com>...
> On Wednesday, March 5, 2014 1:30:11 PM UTC+13, canon wrote:
> > Hi There
> >
> >
> >
> > I have a function f(x,y) and x=[a,b] and y=[c,d]. a, b, c and d are discrete variables. My question is I have to combine variable a,b, c and d and for each pair of (x,y) calculate f. How can I do that?
> >
> >
> >
> > Thanks

>
> It depends whether the function will accept x and y as scalars or vectors or matrices.
> If it will accept matrices, it's easy:
> x=linspace(a,b,nx); % nx is the no of points in x
> y=linspace(c,d,ny); % ny is the no of points in y
> [X,Y]=meshgrid(x,y);
> out=f(X,Y);

Thank you very much. To make my point more clear assume x=[2, 4, 5, 9] and y=[1, 4, 2, 8]. Technically we have 4*4=16 pairs of (x,y) and need 16 value for f. Could you please help me out?

thanks

Date Subject Author
3/4/14 canon
3/4/14 Derek Goring
3/4/14 canon
3/5/14 Torsten
3/5/14 canon
3/5/14 Derek Goring
3/5/14 canon