From 385877a5deec37f38c33b4e927d887e9b9ead592 Mon Sep 17 00:00:00 2001
From: astaxie <xiemengjun@gmail.com>
Date: Thu, 21 Mar 2013 13:53:40 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E7=9B=AE=E5=BD=95=E7=BB=93?=
 =?UTF-8?q?=E6=9E=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 build.go => ebook/build.go     |  0
 build.sh => ebook/build.sh     |  0
 genepub.sh => ebook/genepub.sh |  0
 ebook/src/1.2/main.go          | 13 +++++++++++++
 ebook/src/1.2/sqrt.go          | 11 +++++++++++
 5 files changed, 24 insertions(+)
 rename build.go => ebook/build.go (100%)
 rename build.sh => ebook/build.sh (100%)
 mode change 100755 => 100644
 rename genepub.sh => ebook/genepub.sh (100%)
 mode change 100755 => 100644
 create mode 100644 ebook/src/1.2/main.go
 create mode 100644 ebook/src/1.2/sqrt.go

diff --git a/build.go b/ebook/build.go
similarity index 100%
rename from build.go
rename to ebook/build.go
diff --git a/build.sh b/ebook/build.sh
old mode 100755
new mode 100644
similarity index 100%
rename from build.sh
rename to ebook/build.sh
diff --git a/genepub.sh b/ebook/genepub.sh
old mode 100755
new mode 100644
similarity index 100%
rename from genepub.sh
rename to ebook/genepub.sh
diff --git a/ebook/src/1.2/main.go b/ebook/src/1.2/main.go
new file mode 100644
index 00000000..132c60a7
--- /dev/null
+++ b/ebook/src/1.2/main.go
@@ -0,0 +1,13 @@
+// 章节 1.2
+// $GOPATH/src/mathapp/main.go
+
+package main
+
+import (
+	"fmt"
+	"mymath"
+)
+
+func main() {
+	fmt.Printf("Hello, world.  Sqrt(2) = %v\n", mymath.Sqrt(2))
+}
diff --git a/ebook/src/1.2/sqrt.go b/ebook/src/1.2/sqrt.go
new file mode 100644
index 00000000..1d596053
--- /dev/null
+++ b/ebook/src/1.2/sqrt.go
@@ -0,0 +1,11 @@
+// 章节 1.2
+// $GOPATH/src/mymath/sqrt.go
+package mymath
+
+func Sqrt(x float64) float64 {
+	z := 0.0
+	for i := 0; i < 1000; i++ {
+		z -= (z*z - x) / (2 * x)
+	}
+	return z
+}