comp.lang.idl-pvwave archive: archive » Anonymous Math Functions in IDL like Matlab

Home » Public Forums » archive » Anonymous Math Functions in IDL like Matlab

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Anonymous Math Functions in IDL like Matlab [message #75310 is a reply to message #75264]

Fri, 25 February 2011 16:50

Ammar Yusuf
Messages: 36
Registered: October 2010

Member

On Feb 25, 11:16 am, Michael Galloy <mgal...@gmail.com> wrote:
> On 2/24/11 8:32 pm, nata wrote:
>
>> I am just curious. What does the expression "sqrt = @(x) x.^2" means ?
>
> It's a lambda function, or anonymous function, a way of specifying a
> function without naming it, i.e., to use inline only once.
>
> For example, see how Python does this:
>
> http://diveintopython.org/power_of_introspection/lambda_func tions.html
>
> Mike
> --www.michaelgalloy.com
> Research Mathematician
> Tech-X Corporation

That's pretty cool. I did not know that.

I know in Matlab what happens is it creates a function say sqrt. In
Matlab
you can then call sqrt(4) and it would return 2.

I found this very helpful instead of making a .m file for each
polynomial function
that I was doing for my homework.

Report message to a moderator

[Message index]

		Anonymous Math Functions in IDL like Matlab By: Ammar Yusuf on Wed, 23 February 2011 17:47
		Re: Anonymous Math Functions in IDL like Matlab By: Ammar Yusuf on Fri, 25 February 2011 16:50
		Re: Anonymous Math Functions in IDL like Matlab By: rtk on Thu, 03 March 2011 15:13
		Re: Anonymous Math Functions in IDL like Matlab By: Michael Galloy on Fri, 25 February 2011 08:16

Previous Topic:	Re: Plotimage and non-byte images
Next Topic:	Re: Read ASCII File with tab seperator

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 19:23:44 PDT 2025

Total time taken to generate the page: 0.00414 seconds