ex: do ex. 2.45

1 files changed, 27 insertions, 0 deletions

diff --git a/ex/2/45.rkt b/ex/2/45.rkt
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index 0000000..e750455
--- /dev/null
+++ b/ex/2/45.rkt
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+;;;; License: CC0-1.0
+
+#lang racket
+
+(require
+ racket/runtime-path
+ sicp-pict)
+
+(define-runtime-path rogers-file "rogers.jpg")
+
+(define rogers
+  (bitmap->painter rogers-file))
+
+(define (split left right)
+  (lambda (painter n)
+    (if (= n 0)
+        painter
+        (let ((smaller ((split left right) painter (- n 1))))
+          (left painter (right smaller smaller))))))
+
+(define right-split (split beside below))
+
+(define up-split (split below beside))
+
+;;; Racket REPL
+;;;
+;;; https://ricketyspace.net/sicp/2.45.jpg