z********u 发帖数: 26 | 1 like
A = B * X
m*n m*j j*n
用什么方法? | T*******n 发帖数: 493 | 2 See below. The \mathstrut's are needed so that LaTeX see all three
sets of subscripts as having the same height and set them with the correct
(same) vertical alignment. If you don't put \mathstrut, m*n will be set
slightly higher than m*j and j*n because the "j" has a descender.
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}
\underset{\mathstrut m\times n}{A} =
\underset{\mathstrut m\times j}{B} \times \underset{\mathstrut j\times n}{
X}
\end{equation}
\end{do
【在 z********u 的大作中提到】 : like : A = B * X : m*n m*j j*n : 用什么方法?
| z********u 发帖数: 26 | 3 cool, thanks
}{
【在 T*******n 的大作中提到】 : See below. The \mathstrut's are needed so that LaTeX see all three : sets of subscripts as having the same height and set them with the correct : (same) vertical alignment. If you don't put \mathstrut, m*n will be set : slightly higher than m*j and j*n because the "j" has a descender. : \documentclass{article} : \usepackage{amsmath} : \begin{document} : \begin{equation} : \underset{\mathstrut m\times n}{A} = : \underset{\mathstrut m\times j}{B} \times \underset{\mathstrut j\times n}{
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