如何使用 Python 渲染 Latex 标记？
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How to render Latex markup using Python?
提问by kame
How to show an easy latex-formula in python? Maybe numpy is the right choice?
如何在python中显示一个简单的乳胶配方？也许 numpy 是正确的选择？
EDIT:
编辑：
I have python code like:
我有 python 代码，如：
a = '\frac{a}{b}'
and want to print this in a graphical output (like matplotlib).
并希望将其打印在图形输出中（如 matplotlib）。
采纳答案by Bernardo Kyotoku
As suggested by Andrew little work around using matplotlib.
正如安德鲁所建议的那样，使用 matplotlib 的工作很少。
import matplotlib.pyplot as plt
a = '\frac{a}{b}' #notice escaped slash
plt.plot()
plt.text(0.5, 0.5,'$%s$'%a)
plt.show()
回答by Andrew Jaffe
Matplotlib can already do TeX, by setting text.usetex: Truein ~/.matplotlib/matplotlibrc. Then, you can just use TeX in all displayed strings, e.g.,
Matplotlib 已经可以通过text.usetex: True在~/.matplotlib/matplotlibrc. 然后，您可以在所有显示的字符串中使用 TeX，例如，
ylabel(r"Temperature (K) [fixed $\beta=2$]")
(be sure to use the $as in normal in-line TeX!). The rbefore the string means that no substitutions are made; otherwise you have to escape the slashes as mentioned.
（一定要$在普通的内嵌 TeX 中使用as ！）。该r字符串意味着没有换人才制成; 否则你必须像提到的那样逃避斜线。
More info at the matplotlibsite.
更多信息请访问matplotlib站点。
回答by restrepo
Without ticks:
没有勾号：
a = r'\frac{a}{b}'
ax = plt.axes([0,0,0.1,0.2]) #left,bottom,width,height
ax.set_xticks([])
ax.set_yticks([])
plt.text(0.3,0.4,'$%s$' %a,size=40)
回答by Kris Roofe
Draw with matplotlib,
用 matplotlib 绘制，
import matplotlib.pyplot as plt
a = r'\frac{a}{b}'
ax=plt.subplot(111)
ax.text(0.5,0.5,r"$%s$" %(a),fontsize=30,color="green")
plt.show()
回答by Wojciech Moszczyński
Creating mathematical formulas in Pandas.
在 Pandas 中创建数学公式。
a = r'\frac{a}{b}'
ax = plt.axes([0,0,0.3,0.3]) #left,bottom,width,height
ax.set_xticks([])
ax.set_yticks([])
ax.axis('off')
plt.text(0.4,0.4,'$%s$' %a,size=50,color="green")
a = r'f(x) = \frac{\exp(-x^2/2)}{\sqrt{2*\pi}}'
ax = plt.axes([0,0,0.3,0.3]) #left,bottom,width,height
ax.set_xticks([])
ax.set_yticks([])
ax.axis('off')
plt.text(0.4,0.4,'$%s$' %a,size=50,color="green")
回答by Paul Rougieux
An answer based on this onespecific to Jupyter notebook, using f string to format a $x_i$ variable:
基于此特定于 Jupyter notebook的答案，使用 f 字符串格式化 $x_i$ 变量：
from IPython.display import display, Markdown, Latex
for i in range(3):
display(Latex(f'$x_{i}$'))
side note: I'm surprised Stackoverflow still doesn't have math markup.
旁注：我很惊讶 Stackoverflow 仍然没有数学标记。
