Category Archives: Uncategorized

Welcome to WordPress.com. This is your first post. Edit or delete it and start blogging!

Sectioning In the body of your document, sectioning commands provide the means to structure your text into units. These are all optional, but they can greatly assist in structuring your document. Sections and Their Depths Depth in document Section Command … Continue reading →

在LaTeX中插入矩阵和行列式1. tex file2. pdf file% usepackage\usepackage{amssymb}\usepackage{amsmath}\usepackage{amsthm} % code The \emph{characteristic polynomial} $\chi(\lambda)$ of the $3 \times 3$ ~matrix\[ \left(\begin{array}{ccc}    a & b & c \\    d & e & f \\    g & h & i\end{array} \right)\] is given by … Continue reading →