# [plt-scheme] Re: create a board with vector

The problem I have here is that I cant underestand what is happening
by:
(build-vector n
(lambda (i)
(f i j)))))))
build_vctor has 2 inputs, it seems one of the inputs is n and the
other is (lamda (i) (f i j)). I cant understand what (lamda (i) (f i
j)) will produce.
Cheers,
Mona
On Dec 6, 5:27 pm, Matt Jadud <jad... at gmail.com> wrote:
>* On Sun, Dec 6, 2009 at 10:10 AM, Mona Esmaeili <mona.esma... at gmail.com> wrote:
*>* > Hi,Yes exactly I understood the all of the code but I didn't understand
*>* > Build-board.I don't know what is f.
*>*
*>* Someone else on the list might go about this differently, but I'll ask
*>* you this question to start:
*>*
*>* If I write
*>*
*>* (define (my-add a b)
*>* (+ a b))
*>*
*>* and then write
*>*
*>* (my-add 3 5)
*>*
*>* What syntactic position does "my-add" occupy? Now, couple that with
*>* the documentation for "build-vector" and see if that doesn't get you a
*>* bit unstuck.
*>*
*>* http://docs.plt-scheme.org/reference/vectors.html#%28def._%28%28lib._...
*>*
*>* Cheers,
*>* Matt
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