diff --git a/docs/chapter_appendix/index.md b/docs/chapter_appendix/index.md
index b54afbc5..8f71d750 100644
--- a/docs/chapter_appendix/index.md
+++ b/docs/chapter_appendix/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_array_and_linkedlist/index.md b/docs/chapter_array_and_linkedlist/index.md
index e086bff4..20979edd 100644
--- a/docs/chapter_array_and_linkedlist/index.md
+++ b/docs/chapter_array_and_linkedlist/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_backtracking/index.md b/docs/chapter_backtracking/index.md
index ea4d12d5..ef432234 100644
--- a/docs/chapter_backtracking/index.md
+++ b/docs/chapter_backtracking/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_computational_complexity/index.md b/docs/chapter_computational_complexity/index.md
index 54af4cbd..b042b9d7 100644
--- a/docs/chapter_computational_complexity/index.md
+++ b/docs/chapter_computational_complexity/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_data_structure/index.md b/docs/chapter_data_structure/index.md
index 1f5d9eec..96bafde9 100644
--- a/docs/chapter_data_structure/index.md
+++ b/docs/chapter_data_structure/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_data_structure/number_encoding.md b/docs/chapter_data_structure/number_encoding.md
index 360f5360..55760809 100644
--- a/docs/chapter_data_structure/number_encoding.md
+++ b/docs/chapter_data_structure/number_encoding.md
@@ -88,25 +88,31 @@ $$
细心的你可能会发现：`int` 和 `float` 长度相同，都是 4 bytes，但为什么 `float` 的取值范围远大于 `int` ？这非常反直觉，因为按理说 `float` 需要表示小数，取值范围应该变小才对。
-实际上，这是因为浮点数 `float` 采用了不同的表示方式。根据 IEEE 754 标准，32-bit 长度的 `float` 由以下部分构成：
-
-- 符号位 $\mathrm{S}$ ：占 1 bit 。
-- 指数位 $\mathrm{E}$ ：占 8 bits 。
-- 分数位 $\mathrm{N}$ ：占 24 bits ，其中 23 位显式存储。
-
-设 32-bit 二进制数的第 $i$ 位为 $b_i$ ，则 `float` 值的计算方法定义为：
+实际上，**这是因为浮点数 `float` 采用了不同的表示方式**。记一个 32-bit 长度的二进制数为：
$$
-\text { val } = (-1)^{b_{31}} \times 2^{\left(b_{30} b_{29} \ldots b_{23}\right)_2-127} \times\left(1 . b_{22} b_{21} \ldots b_0\right)_2
+b_{31} b_{30} b_{29} \ldots b_2 b_1 b_0
$$
-转化到十进制下的计算公式为
+根据 IEEE 754 标准，32-bit 长度的 `float` 由以下部分构成：
+
+- 符号位 $\mathrm{S}$ ：占 1 bit ，对应 $b_{31}$ 。
+- 指数位 $\mathrm{E}$ ：占 8 bits ，对应 $b_{30} b_{29} \ldots b_{23}$ 。
+- 分数位 $\mathrm{N}$ ：占 23 bits ，对应 $b_{22} b_{21} \ldots b_0$ 。
+
+二进制数 `float` 对应的值的计算方法：
$$
-\text { val }=(-1)^{\mathrm{S}} \times 2^{\mathrm{E} -127} \times (1 + \mathrm{N})
+\text {val} = (-1)^{b_{31}} \times 2^{\left(b_{30} b_{29} \ldots b_{23}\right)_2-127} \times\left(1 . b_{22} b_{21} \ldots b_0\right)_2
$$
-其中各项的取值范围为
+转化到十进制下的计算公式：
+
+$$
+\text {val}=(-1)^{\mathrm{S}} \times 2^{\mathrm{E} -127} \times (1 + \mathrm{N})
+$$
+
+其中各项的取值范围：
$$
\begin{aligned}
diff --git a/docs/chapter_divide_and_conquer/index.md b/docs/chapter_divide_and_conquer/index.md
index d9afa817..8340ae9c 100644
--- a/docs/chapter_divide_and_conquer/index.md
+++ b/docs/chapter_divide_and_conquer/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_dynamic_programming/index.md b/docs/chapter_dynamic_programming/index.md
index cb24d496..515097e5 100644
--- a/docs/chapter_dynamic_programming/index.md
+++ b/docs/chapter_dynamic_programming/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_graph/index.md b/docs/chapter_graph/index.md
index b1647780..d13458c0 100644
--- a/docs/chapter_graph/index.md
+++ b/docs/chapter_graph/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_greedy/index.md b/docs/chapter_greedy/index.md
index 209403f0..a6abfa6c 100644
--- a/docs/chapter_greedy/index.md
+++ b/docs/chapter_greedy/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_hashing/index.md b/docs/chapter_hashing/index.md
index 029b261b..61dea6a7 100644
--- a/docs/chapter_hashing/index.md
+++ b/docs/chapter_hashing/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_heap/index.md b/docs/chapter_heap/index.md
index ef2deb57..3ade71e3 100644
--- a/docs/chapter_heap/index.md
+++ b/docs/chapter_heap/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_introduction/index.md b/docs/chapter_introduction/index.md
index f8441fd2..3b317f1d 100644
--- a/docs/chapter_introduction/index.md
+++ b/docs/chapter_introduction/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_preface/index.md b/docs/chapter_preface/index.md
index d6e0462e..5a91e25d 100644
--- a/docs/chapter_preface/index.md
+++ b/docs/chapter_preface/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_searching/index.md b/docs/chapter_searching/index.md
index 82f223cc..3bc7b41f 100644
--- a/docs/chapter_searching/index.md
+++ b/docs/chapter_searching/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_sorting/index.md b/docs/chapter_sorting/index.md
index b1d8483d..7b797c40 100644
--- a/docs/chapter_sorting/index.md
+++ b/docs/chapter_sorting/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_stack_and_queue/index.md b/docs/chapter_stack_and_queue/index.md
index 7d86a78b..1c845b75 100644
--- a/docs/chapter_stack_and_queue/index.md
+++ b/docs/chapter_stack_and_queue/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }
diff --git a/docs/chapter_tree/index.md b/docs/chapter_tree/index.md
index 3d773a84..37553c92 100644
--- a/docs/chapter_tree/index.md
+++ b/docs/chapter_tree/index.md
@@ -2,6 +2,6 @@
-{ width="70%" }
+{ width="600" }