That's simply notation for defining a procedure or a function.
Here's an example:
meep> (define square (lambda (x) (* x x)))
meep> (square 4)
16
In that example, square is a procedure that takes one argument, x, and
returns (* x x).
You can read more about lambda expressions here:
http://www.gnu.org/software/guile/manual/guile.html#Lambda
Best,
Matt
On Wed, 28 Oct 2009, liu wrote:
Hi, I have seen the following ctl file,
---------------------------
(define mysource (lambda (t) (sin (* 10 t))))
(define cs (list (make source
(src (make custom-src
(src-func mysource) (start-time start) (end-time end)))
(component Ez) (center 0 0) (size 0 0))))
---------------------------
My question is what does "lambda(t) " mean?
does it mean that the source is with a single frequency with amplitude changing sin(10t)?
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