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标题字体样式为粗体斜体

tag-icon • tag-icon formatting theorems
标题字体样式为粗体斜体

我有以下样式。想让标题字体变为粗体斜体。但我需要修改吗？


    \newtheoremstyle{mystyle}  % name of style
    {8pt}       % measure of space above example, e.g. {3pt}
    {8pt}       % measure of space below example, e.g. {3pt}
    {\itshape}  % name of font for body of example
    {}          % measure of space to indent, e.g. {3pt}
    {\bfseries} % name of font for heading
    {.}         % punctuation between heading and body
    { }         % space after theorem heading; { } defines an interword space
    { {\thmname{\textbf{\textit{#1}}}}
       \textcolor{DarkOrange3}{\textbf{\thmnumber{#2}}}
       \thmnote{ \textit{\texttt{\textsf{({#3})}}}} }
    
    \theoremstyle{mystyle}
    \newtheorem{theorem}{\textcolor{Green4}{Theorem}}[section]

答案1

用作{\bfseries\itshape}标题字体的名称，并在最后一行进行更改，以避免在定理编号后出现多余的空格。

正文和注释将使用相同的字体，但可以稍后修改。

d

\documentclass[12pt,a4paper]{article}

\usepackage{amsmath,amsthm} 
\usepackage[x11names]{xcolor}


\newtheoremstyle{mystyle}  % name of style
{8pt}       % measure of space above example, e.g. {3pt}
{8pt}       % measure of space below example, e.g. {3pt}
{\itshape}  % name of font for body of example
{}          % measure of space to indent, e.g. {3pt}
{\bfseries\itshape} % name of font for heading % changed <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
{\textcolor{DarkOrange3}{.}}% punctuation between heading and body % changed <<<<<<<<<<<<<<
{ }         % space after theorem heading; { } defines an interword space
{\thmname{#1}\enspace\textcolor{DarkOrange3}{\thmnumber{#2}}\thmnote{#3}} % changed <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

\theoremstyle{mystyle}
\newtheorem{theorem}{\textcolor{Green4}{Theorem}}[section]

\begin{document}
    
    \section{One}   
    
    \begin{theorem}{\sffamily\footnotesize (The note argument is optional.)}\label{thm-main1}
        \begin{equation}\label{detB1}
            \det\mathbf{B}=
            \sum^n_{l =0}\sum_{I_l \subseteq n}
            \prod_{i\in I_l}(b_{ii}-\lambda_i)
            \det\mathbf{B}^{(\lambda)}(I_l |I_l ),
        \end{equation}
        where $I_l =\{i_1,\dots,i_l \}$ and $\mathbf{B}^{(\lambda)}(I_l |I_l )$
        is the principal submatrix obtained from $\mathbf{B}^{(\lambda)}$
        by deleting its $i_1,\dots,i_l $ rows and columns.
    \end{theorem}
    
\end{document}

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