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typos fixed

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svn: r10938
This commit is contained in:
Matthias Felleisen 2008-07-27 21:40:05 +00:00
parent d532716a51
commit a71b13eacd
1 changed files with 5 additions and 3 deletions
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8
collects/teachpack/htdp/scribblings/matrix.scrbl
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@ -12,14 +12,14 @@ matrix is just a rectangle of 'objects'. It is displayed as an image, just
like the images from @secref["image"]. Matrices are images and, indeed,
scenes in the sense of the @secref["world"].
@emph{No educational materials involving matrices exist.}
The operations access a matrix in the usual (school-mathematics) manner:
row first, column second.
The operations aren't tuned for efficiency so don't expect to build
programs that process lots of data.
@declare-exporting[teachpack/htdp/matrix]
@deftech{Rectangle}
@ -49,7 +49,9 @@ it were like @scheme[make-vector]}
@defproc[(build-matrix
[n natural-number/c][m natural-number/c]
[f (-> (and/c natural-number/c (</c m)) (and/c natural-number/c (</c n)) any/c)])
[f (-> (and/c natural-number/c (</c m))
(and/c natural-number/c (</c n))
any/c)])
matrix?]{
creates an @scheme[n] by @scheme[m] matrix by applying @scheme[f] to @scheme[(0,0)],
@scheme[(0,1)], ..., (@scheme[(sub1 m),(sub1 n)])}