定义一个多项式: \(p = x^2 + 2x + 1\)
import numpy as np
p = np.poly1d([1, 2, 1])
运算,设有两个多项式: \(p_1 = (x^2 + 2x + 1), p_2 = (2x^2 - x +3 )\)
>>> p1 = np.poly1d([1, 2, 1])
>>> p2 = np.poly1d([2, -1, 3])
>>> p1+p2
poly1d([3, 1, 4])
>>> p1-p2
poly1d([-1 ...如果要使用中文需要用xelatex包，编译时用xelatex来生成pdf
\documentclass{aritcle}
\usepackage{xeCJK}
\setCJKmainfont{Microsoft YaHei}
\begin{document}
中文
\end{document}
如果配合sphinx使用，可以修该conf.py中latex_elemments部分 在preamble中添加上xeCJK包
latex_elements = {
# The paper size ('letterpaper' or 'a4paper').
#'papersize': 'letterpaper',
# The font size ('10pt', '11pt' or '12pt').
'pointsize': '12pt',
# Additional stuff for the LaTeX preamble.
'preamble': """\usepackage{xeCJK}
\setCJKmainfont{Microsoft YaHei}""",
# Latex figure ...git reset .
git config --global credential.helper cache
git config --global credential.helper store
git config global http.proxy http://user:pwd@proxy_addr:port
Check out a nice clean working copy.
Merge (backwards) changes.
svn merge -r100:70 http://repo.com/my/project/trunk
svn commit -m "rolled back to the good old days of r70