From f1d4e611c599112fa0a49ca80cdd1d35b78ea9f8 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Thu, 18 Jul 2024 21:27:56 +0900
Subject: udpate slides

---
 slide.pdf  | Bin 264384 -> 267279 bytes
 slide.saty |  28 ++++++++++++++++++++++++----
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/slide.pdf b/slide.pdf
index e7fb2a5..a095733 100644
Binary files a/slide.pdf and b/slide.pdf differ
diff --git a/slide.saty b/slide.saty
index a84d503..0d6c8f1 100644
--- a/slide.saty
+++ b/slide.saty
@@ -214,17 +214,37 @@ $label = new Label($m);`);
   >
 
   +frame{f64.div}<
-    +code-block-php(`return $x / $y;`);
+  >
+
+  +frame{f64.div}<
+    +p{PHP で 0.0 割る 0.0 は？}
+  >
+
+  +frame{f64.div}<
+    +p{PHP で 0.0 割る 0.0 は？}
+    +enumerate{
+      * NaN (Not a Number)
+      * Infinity (正の無限大)
+      * -Infinity (負の無限大)
+    }
+  >
+
+  +frame{f64.div}<
+    +p{PHP で 0.0 割る 0.0 は？}
+    +enumerate{
+      * NaN (Not a Number)
+      * Infinity (正の無限大)
+      * -Infinity (負の無限大)
+      * Fatal error
+    }
     +p{}
-    +code-block-php(`return fdiv($x, $y);`);
+    +p{除算演算子は IEEE 754 に準拠していない}
   >
 
   +frame{f64.div}<
     +code-block-php(`return $x / $y;`);
     +p{}
     +code-block-php(`return fdiv($x, $y);`);
-    +p{}
-    +p{除算演算子は IEEE 754 に準拠していない}
   >
 
   +frame{Emscripten}<
-- 
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