From 9eadb0119b2f2ef43cd70382752ba08a92e221b0 Mon Sep 17 00:00:00 2001
From: Darcy Shen <da@liii.pro>
Date: Sat, 3 Feb 2024 13:34:08 +0800
Subject: [PATCH] =?UTF-8?q?SICP=2001=20=E5=8B=98=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 SICP/index.tm | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/SICP/index.tm b/SICP/index.tm
index 29fcec5..e62d6cb 100644
--- a/SICP/index.tm
+++ b/SICP/index.tm
@@ -23,8 +23,36 @@
 
     \<#8BFE\>\<#4EF6\>\<#FF1A\><hlink|\<#5E7B\>\<#706F\>\<#7247\>|slide01.tm>
 
+    \<#56DE\>\<#653E\>\<#FF1A\><hlink|B\<#7AD9\>\<#89C6\>\<#9891\>|https://www.bilibili.com/video/BV1cp421f7xP/>
+
     \<#8BFE\>\<#540E\>\<#FF1A\>\<#8BF7\>\<#5B8C\>\<#6210\>\<#8BB2\>\<#4E49\>\<#4E2D\>\<#7684\>\<#4E60\>\<#9898\>
 
+    \<#52D8\>\<#8BEF\>1\<#FF1A\>
+
+    <\session|scheme|default>
+      <\unfolded-io|Scheme] >
+        (define pi 3.14159)
+      <|unfolded-io>
+        <errput|define: pi is immutable>
+      </unfolded-io>
+
+      <\unfolded-io|Scheme] >
+        pi
+      <|unfolded-io>
+        3.141592653589793
+      </unfolded-io>
+
+      <\input|Scheme] >
+        \;
+      </input>
+    </session>
+
+    \<#51FA\>\<#73B0\>\<#4E0A\>\<#8FF0\>\<#63D0\>\<#793A\>\<#7684\>\<#539F\>\<#56E0\>\<#662F\>\<#FF0C\>\<#3C0\>\<#5DF2\>\<#7ECF\>\<#88AB\>\<#5B9A\>\<#4E49\>\<#4E86\>\<#3002\>
+
+    \<#52D8\>\<#8BEF\>2\<#FF1A\>
+
+    normal order evaluation\<#5E94\>\<#8BE5\>\<#7FFB\>\<#8BD1\>\<#4E3A\>\<#6B63\>\<#5219\>\<#5E8F\>\<#6C42\>\<#503C\>\<#3002\>B\<#7AD9\>\<#7B2C\>1\<#8BFE\>\<#7684\>\<#6B63\>\<#5219\>\<#5E8F\>\<#6C42\>\<#503C\>\<#548C\>\<#5E94\>\<#7528\>\<#5E8F\>\<#6C42\>\<#503C\>\<#8BB2\>\<#53CD\>\<#4E86\>\<#3002\>\<#6B63\>\<#5219\>\<#5E8F\>\<#662F\>\<#5148\>\<#5C55\>\<#5F00\>\<#FF0C\>\<#518D\>\<#6C42\>\<#503C\>\<#3002\>\<#5E94\>\<#7528\>\<#5E8F\>\<#6C42\>\<#503C\>\<#662F\>\<#5148\>\<#5BF9\>\<#64CD\>\<#4F5C\>\<#6570\>\<#6C42\>\<#503C\>\<#FF0C\>\<#518D\>\<#5E94\>\<#7528\>\<#64CD\>\<#4F5C\>\<#7B26\>\<#3002\>
+
     <item>\<#7B2C\>0\<#8BFE\>\<#FF1A\>\<#51C6\>\<#5907\>Scheme\<#7F16\>\<#7A0B\>\<#7684\>\<#73AF\>\<#5883\>
 
     \<#8BFE\>\<#4EF6\>\<#FF1A\><hlink|\<#5E7B\>\<#706F\>\<#7247\>|slide00.tm>
@@ -34,4 +62,4 @@
 </body>
 
 <initial|<\collection>
-</collection>>
+</collection>>
\ No newline at end of file