我有以下几行注释我的matplotlib绘图上的TeX :
matplotlib
import matplotlib.pyplot as plt from matplotlib import rc rc('text', usetex=True) rc('font', family='serif') r = 1 v = 2 i = 3 notes = r"\noindent$R_L = {0}\\ V_2 = {1}\\ I_2 = {2}$".format(r, v, i) plt.annotate(notes, xy=(5,5), xytext=(7,7)) plt.show()
如何使等号彼此对齐?我尝试了几种方法,如\begin{align},&-placement,但我不完全得到它的权利。
\begin{align}
&
使用eqnarray。您的代码的简化版本:
eqnarray
#!/usr/bin/python import matplotlib.pyplot as plt from matplotlib import rc rc('text', usetex=True) rc('font', family='serif') r = 1 v = 2 i = 3 plt.plot([1,2,3],[2,3,4],'ro-') plt.text(2,2,r"\begin{eqnarray*}R_L&= 0\\ V_2&= 1\\ I_2&= 2\end{eqnarray*}") #notes = r"\noindent$$R_L = {0}\\ V_2 = {1}\\ I_2 = {2}$$".format(r, v, i) #plt.annotate(notes, xy=(5,5), xytext=(7,7)) plt.show()
为了使其正常工作,我必须安装dvipng(如此处建议的,http: //matplotlib.sourceforge.net/users/usetex.html )