数学字体 Mathematical fonts

Mathematical fonts

数学字体：

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ
\\ \mathcal{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ} 
\\
\mathfrak{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ} 
\\
\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ} 
\\

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ \\ 
\setminus\!mathcal\!\left \{ \right \}\\ 
\mathcal{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ} \\ 
\setminus\!mathfrak\!\left \{ \right \}\\ 
\mathfrak{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ} \\ 
\setminus\!mathbb\!\left \{ \right \}\\ 
\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzRQSZ} \\

---

\boldsymbol{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\mathbf{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\mathit{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\mathrm{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\mathfrak{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\

\setminus\!boldsymbol\!\left \{ Math \;  Bold  \;  Greek \right \}\\ 
\boldsymbol{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\setminus\!mathbf\!\left \{  Math \;  Bold \right \}\\ 
\mathbf{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\setminus\!mathit\!\left \{  Math \;  Italic \right \}\\ 
\mathit{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\setminus\!mathrm\!\left \{  Math \;  Roman \right \}\\ 
\mathrm{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\setminus\!mathfrak\!\left \{ Math \;  Fraktur \right \}\\ 
\mathfrak{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\
\setminus\!mathbb\!\left \{ Math \;  Blackboard \right \}\\ 
\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}
\\

---

\textup{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\
 \textbf{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\textit{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\textrm{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\textsl{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\
 \texttt{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\
 \textsc{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\emph{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}

---

\setminus\!textup\!\left \{  Text \;  Upright \right \}\\ 
\textup{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\setminus\!textbf\!\left \{  Text \;  Bold \right \}\\ 
\textbf{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\setminus\!textit\!\left \{  Text \;  Italic \right \}\\ 
\textit{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\setminus\!textrm\!\left \{  Text \;  Roman \right \}\\ 
\textrm{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\setminus\!textsl\!\left \{  Text \;  Slanted \right \}\\ 
\textsl{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\setminus\!texttt\!\left \{  Text \;  Typewriter \right \}\\ 
\texttt{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\setminus\!textsc\!\left \{  Text \;  Small \;  Caps \right \}\\ 
\textsc{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz} \\ 
\setminus\!emph\!\left \{  Text \;  Emphasis \right \}\\ 
\emph{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz}

---

Mathematical fonts

数学字体

Contents

• 1 Introduction
• 2 Capital letters-only font typefaces
• 3 Other mathematical fonts
• 4 Further reading

内容

• 1 引言
• 2 种仅大写字母字体
• 3 其他数学字体
• 4 延伸阅读

Introduction

Some mathematical elements need to be typeset using fonts containing characters/symbols of a certain style; for example, it is customary to represent real numbers with a blackboard bold font (such as ), or topological spaces with calligraphic font (such as (). This article shows how to use different font styles when typesetting mathematics, starting with the following example:

介绍

一些数学元素需要使用包含某种样式的字符/符号的字体进行排版;例如，习惯上用黑板粗体表示实数（如），或带有书法字体的拓扑空间（例如 （).本文介绍如何在排版数学时使用不同的字体样式，从以下示例开始：

Let \( \mathcal{T} \) be a topological space, a basis is defined as
\[
 \mathcal{B} = \{B_{\alpha} \in \mathcal{T}\, |\,  U = \bigcup B_{\alpha} \forall U \in \mathcal{T} \}
\]

 Open this example in Overleaf

This example produces the following output:

此示例生成以下输出：

Use of some math font styles requires the line to be added to the document preamble: see the amsfonts package for further information. \usepackage{amssymb}

使用某些数学字体样式需要将该行添加到文档序言中：有关详细信息，请参阅 amsfonts 包。\usepackage{amssymb}

Capital letters-only font typefaces

There are some font typefaces which support only a limited number of characters; these fonts usually denote some special sets. For instance, to display the R in blackboard bold typeface you can use to produce \(\mathbb{R}\). The following example shows calligraphic, fraktur and blackboard bold typefaces:

仅大写字母字体

有些字体仅支持有限数量的字符;这些字体通常表示一些特殊的集合。例如，要以黑板粗体字体显示 R，您可以使用它来生成\(\mathbb{R}\).以下示例显示了书法、fraktur 和黑板粗体字体：

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\begin{document}
\begin{align*}
RQSZ \\
\mathcal{RQSZ} \\
\mathfrak{RQSZ} \\
\mathbb{RQSZ}
\end{align*}
\end{document}

 Open this example in Overleaf

This example produces the following output:

RQSZ \\
\mathcal{RQSZ} \\
\mathfrak{RQSZ} \\
\mathbb{RQSZ}

Other mathematical fonts

It is possible to set a different font family for a complete mathematical expression:

其他数学字体

可以为完整的数学表达式设置不同的字体系列：

\begin{align*}
3x^2 \in R \subset Q \\
\mathnormal{3x^2 \in R \subset Q} \\
\mathrm{3x^2 \in R \subset Q} \\
\mathit{3x^2 \in R \subset Q} \\
\mathbf{3x^2 \in R \subset Q} \\
\mathsf{3x^2 \in R \subset Q} \\
\mathtt{3x^2 \in R \subset Q}
\end{align*}

 Open this example in Overleaf

This example produces the following output:

3x^2 \in R \subset Q \\
\mathnormal{3x^2 \in R \subset Q} \\
\mathrm{3x^2 \in R \subset Q} \\
\mathit{3x^2 \in R \subset Q} \\
\mathbf{3x^2 \in R \subset Q} \\
\mathsf{3x^2 \in R \subset Q} \\
\mathtt{3x^2 \in R \subset Q}

In this case, not only letters but all characters change their appearance; for example, italicises the entire expression to produce $\mathit{3x^2} $.

在这种情况下，不仅字母，而且所有字符都会改变它们的外观;例如，将整个表达式斜体化以生成$\mathit{3x^2} .

Further reading

For more information see

• amsfonts package documentation
• Mathematical expressions
• Subscripts and superscripts
• Bold, italics and underlining
• Font sizes, families, and styles
• Font typefaces
• Text alignment
• The not so short introduction to LATEX2ε

延伸阅读

有关更多信息，请参阅 。

• amsfonts 软件包文档
• 数学表达式
• 下标和上标
• 粗体、斜体和下划线
• 字体大小、系列和样式
• 字体字体
• 文本对齐方式
• 对 LATEX2 的介绍不那么简短 ε

摘自：

Mathematical fonts - Overleaf, Online LaTeX Editor