Revert "Add output of a few front page examples in explanations."

This reverts commit a5bc367b89.
This commit is contained in:
Sam Tobin-Hochstadt 2014-04-07 17:48:03 -04:00
parent 5055a61a56
commit d273f3130b
3 changed files with 3 additions and 7 deletions

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@ -114,13 +114,11 @@
[(zero? n) (triangle 2 'solid 'red)]
[else (define t (sierpinski (- n 1)))
(freeze (above t (beside t t)))]))}
(list
@desc{The @elemcode{2htdp/image} library provides easy-to-use functions
for constructing images, and DrRacket can display an image result as
easily as it can display a number result. In this case, a
@elemcode{sierpinski} function is defined and called (at the same time)
to generate a Sierpinski triangle of depth 8. It looks like}
@img[width: "50%" src: (copyfile #:site www-site (build-path img-dir "sierp.png"))]))
to generate a Sierpinski triangle of depth 8.})
(graphical-example #:title "GUI Programming"; ---------------------------------------------
@code{#lang racket/gui ; A GUI guessing game
(define f (new frame% [label "Guess"]))
@ -225,11 +223,9 @@
(define (thrice f) (lambda (x) (f (f (f x)))))
(plot (list (function ((thrice deriv) sin) -5 5)
(function cos -5 5 #:color 'blue)))}
(list
@desc{This program uses the @elemcode{plot} library to draw plots of
functions. Note that the plots are actual values, which DrRacket shows
in graphical form. It looks like}
@img[width: "50%" src: (copyfile #:site www-site (build-path img-dir "cos-deriv.png"))]))
functions. Note that the plots are actual value, which DrRacket shows
in graphical form.})
(generic-example #:title "Sending email"; -----------------------------------------------
@code{#lang racket ; Sending email from racket
(require net/sendmail)