From: Ramakrishnan Muthukrishnan <vu3rdd@gmail.com>
Date: Wed, 6 Jul 2011 02:36:19 +0000 (+0530)
Subject: solutions to 3.53 and 3.54
X-Git-Url: https://git.rkrishnan.org/%5B/%5D%20/uri/frontends/%22news.html/flags/(%5B%5E?a=commitdiff_plain;h=33faa357d0c833542640f75cc3087dcc1d0609e9;p=sicp.git

solutions to 3.53 and 3.54
---

diff --git a/src/sicp/ex3_53.rkt b/src/sicp/ex3_53.rkt
new file mode 100644
index 0000000..1bfa479
--- /dev/null
+++ b/src/sicp/ex3_53.rkt
@@ -0,0 +1,10 @@
+#lang racket
+
+#|
+
+  1 2 4 8  16 32
+  1 2 4 8  16 32
+
+1 2 4 8 16 32 64 ....
+
+|#
\ No newline at end of file
diff --git a/src/sicp/ex3_54.rkt b/src/sicp/ex3_54.rkt
new file mode 100644
index 0000000..558e936
--- /dev/null
+++ b/src/sicp/ex3_54.rkt
@@ -0,0 +1,9 @@
+#lang planet neil/sicp
+
+(define (mul-streams s1 s2)
+  (stream-map * s1 s2))
+
+(define factorial (cons-stream 1 (mul-streams factorial (integers-starting-from 2))))
+
+
+