需要内联矩阵和标记分配方面的帮助

需要内联矩阵和标记分配方面的帮助

我是 Latex 新手。我需要一些有关 LaTeX 编辑的帮助。

我的课程导师要求我抄几道考试题目作为练习。以下是题目(有些题目被隐藏了,以免引起麻烦):

问题

以下是我的问题:

  1. 我怎样才能输入如图所示的内联矩阵方程?我尝试过 Overleaf 解决方案,但输出结果很糟糕。

    Trying to typeset an inline matrix here
    $\begin{pmatrix}
    a & b\\ 
    c & d
    \end{pmatrix}$ 
    but it looks too big, so let's try 
    $\big(\begin{smallmatrix}
    a & b\\
    c & d
    \end{smallmatrix}\big)$ 
    instead.
    
  2. 另外,我怎样才能像图片中那样输入标记指示(即圆圈[6 points])?我问了我的导师,他告诉我“\hfill”可能会有帮助。然而,它不起作用。

我使用以下格式列出清单:

在此处输入图片描述

如果有人能帮助我将不胜感激。

答案1

这可能会帮助你:

\documentclass{article}
\usepackage{mathtools}
\usepackage{nccmath}
%---------------- show page layout. don't use in a real document!
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%
\usepackage{lipsum}

\begin{document}
    \begin{enumerate}
\item   Trying to typeset an inline matrix here as \verb+pmatrix+: $\begin{pmatrix} a & b\\  c & d \end{pmatrix}$  but it looks too big, so let's try to use \verb+psmallmatrix+: $\begin{psmallmatrix} a & b\\ c & d \end{psmallmatrix}$  instead.
\hfill [6 points]

\item   
Trying 
    \marginpar{[6 points]}
to typeset an inline matrix as \verb+psmallmatrix+ defined in the package here $\begin{psmallmatrix} a & b\\  c & d \end{psmallmatrix}$  gives hopefully satisfactory result. Here the point achieved solving this task is in page margin. Instruction for it should be inserted after firs word in theparagraph/item.

\item
One
    \marginpar{[6 points]}
more possibilities id us \verb+mpamtrix+ defined in the \verb+nccmath+ package: $\Bigl(\begin{mmatrix} a&b\\c&d\end{mmatrix}\Bigr)$ which gives medium sized matrix which you may liked :-). Here the point achieved at solving this task is in page margin as in previous case. Instruction for it should be inserted after firs word in the paragraph.
\end{enumerate}
\end{document}

在此处输入图片描述

(红线表示页面布局)

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