diff --git a/chapter_appendix/index.md b/chapter_appendix/index.md
index 32a30e4ca..f1a482893 100644
--- a/chapter_appendix/index.md
+++ b/chapter_appendix/index.md
@@ -7,7 +7,7 @@ icon: material/help-circle-outline
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_array_and_linkedlist/index.md b/chapter_array_and_linkedlist/index.md
index d9d71aa7a..09edf5c98 100644
--- a/chapter_array_and_linkedlist/index.md
+++ b/chapter_array_and_linkedlist/index.md
@@ -7,7 +7,7 @@ icon: material/view-list-outline
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_backtracking/index.md b/chapter_backtracking/index.md
index adfd2b7bb..ab909f632 100644
--- a/chapter_backtracking/index.md
+++ b/chapter_backtracking/index.md
@@ -7,7 +7,7 @@ icon: material/map-marker-path
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_computational_complexity/index.md b/chapter_computational_complexity/index.md
index dfbd787f5..958e013ea 100644
--- a/chapter_computational_complexity/index.md
+++ b/chapter_computational_complexity/index.md
@@ -7,7 +7,7 @@ icon: material/timer-sand
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_data_structure/index.md b/chapter_data_structure/index.md
index a1b9997ae..9d829c9ee 100644
--- a/chapter_data_structure/index.md
+++ b/chapter_data_structure/index.md
@@ -7,7 +7,7 @@ icon: material/shape-outline
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_data_structure/number_encoding.md b/chapter_data_structure/number_encoding.md
index e61c78acd..20f276196 100644
--- a/chapter_data_structure/number_encoding.md
+++ b/chapter_data_structure/number_encoding.md
@@ -94,25 +94,31 @@ $$
细心的你可能会发现：`int` 和 `float` 长度相同，都是 4 bytes，但为什么 `float` 的取值范围远大于 `int` ？这非常反直觉，因为按理说 `float` 需要表示小数，取值范围应该变小才对。
-实际上，这是因为浮点数 `float` 采用了不同的表示方式。根据 IEEE 754 标准，32-bit 长度的 `float` 由以下部分构成：
-
-- 符号位 $\mathrm{S}$ ：占 1 bit 。
-- 指数位 $\mathrm{E}$ ：占 8 bits 。
-- 分数位 $\mathrm{N}$ ：占 24 bits ，其中 23 位显式存储。
-
-设 32-bit 二进制数的第 $i$ 位为 $b_i$ ，则 `float` 值的计算方法定义为：
+实际上，**这是因为浮点数 `float` 采用了不同的表示方式**。记一个 32-bit 长度的二进制数为：
$$
-\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/chapter_divide_and_conquer/index.md b/chapter_divide_and_conquer/index.md
index d018d17ca..8a6687739 100644
--- a/chapter_divide_and_conquer/index.md
+++ b/chapter_divide_and_conquer/index.md
@@ -8,7 +8,7 @@ status: new
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_dynamic_programming/index.md b/chapter_dynamic_programming/index.md
index 8ad44fd23..2dc2c6abb 100644
--- a/chapter_dynamic_programming/index.md
+++ b/chapter_dynamic_programming/index.md
@@ -8,7 +8,7 @@ status: new
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_graph/index.md b/chapter_graph/index.md
index 22b487eee..27c50834f 100644
--- a/chapter_graph/index.md
+++ b/chapter_graph/index.md
@@ -7,7 +7,7 @@ icon: material/graphql
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_greedy/index.md b/chapter_greedy/index.md
index d226852b6..af6553a5a 100644
--- a/chapter_greedy/index.md
+++ b/chapter_greedy/index.md
@@ -8,7 +8,7 @@ status: new
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_hashing/index.md b/chapter_hashing/index.md
index 163cdf322..46163cb77 100644
--- a/chapter_hashing/index.md
+++ b/chapter_hashing/index.md
@@ -7,7 +7,7 @@ icon: material/table-search
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_heap/index.md b/chapter_heap/index.md
index 1d9a2fc21..cba2ef77e 100644
--- a/chapter_heap/index.md
+++ b/chapter_heap/index.md
@@ -7,7 +7,7 @@ icon: material/family-tree
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_introduction/index.md b/chapter_introduction/index.md
index 6f321a25f..ea6636773 100644
--- a/chapter_introduction/index.md
+++ b/chapter_introduction/index.md
@@ -7,7 +7,7 @@ icon: material/calculator-variant-outline
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_preface/index.md b/chapter_preface/index.md
index 6ea4d5362..13ebb3a06 100644
--- a/chapter_preface/index.md
+++ b/chapter_preface/index.md
@@ -7,7 +7,7 @@ icon: material/book-open-outline
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_searching/index.md b/chapter_searching/index.md
index 656945ffd..e15de9bf6 100644
--- a/chapter_searching/index.md
+++ b/chapter_searching/index.md
@@ -7,7 +7,7 @@ icon: material/text-search
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_sorting/index.md b/chapter_sorting/index.md
index 63faa100a..896b29d96 100644
--- a/chapter_sorting/index.md
+++ b/chapter_sorting/index.md
@@ -7,7 +7,7 @@ icon: material/sort-ascending
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_stack_and_queue/index.md b/chapter_stack_and_queue/index.md
index 0597b76e4..0f970df58 100644
--- a/chapter_stack_and_queue/index.md
+++ b/chapter_stack_and_queue/index.md
@@ -7,7 +7,7 @@ icon: material/stack-overflow
-{ width="70%" }
+{ width="600" }
diff --git a/chapter_tree/index.md b/chapter_tree/index.md
index df8bef61b..6899e9815 100644
--- a/chapter_tree/index.md
+++ b/chapter_tree/index.md
@@ -7,7 +7,7 @@ icon: material/graph-outline
-{ width="70%" }
+{ width="600" }