![]() ![]() ticklabels and title), not only math when using true LaTeX. Notice how all text is rendered with LaTeX (e.g. # Mathtext does not handle `\displaystyle` # The below code is only included to show differences between Mathtext Plt.ylabel(r'$\alpha\leq\beta$', fontsize=20) If you don't have a number pad you can copy the sign at the top of this page, or use the character map in Windows. To use matplotlib's own TeX parser Mathtext, simply wrap the expression inside dollar signs in a string: import matplotlib.pyplot as plt Unicode code: U + 2260 HTML code: Not Equal Sign on Windows To type the not equal sign on a Windows computer, hold down the Alt key and type 8800 on your number pad (ensure that the Numlock is turned on). 1 The closely related code point U+2262 NOT IDENTICAL TO ( &nequiv, &NotCongruent ) is the same symbol with a slash through it, indicating the negation of its mathematical meaning. Unicode Character (U+2260)Name:Not Equal ToUnicode Version:1. Using Mathtext, matplotlib's own TeX parser The triple bar character in Unicode is code point U+2261 IDENTICAL TO ( &Congruent, ). ![]() If you want to know more about them, see the link in References. I'm not going to elaborate on how to use XeLaTeX or LuaLaTeX, as this extends far beyond the scope of your question. You can also use LaTeX with the Agg, PS and PDF backends. If you have a local LaTeX installation you can typeset math and text with either XeLaTex, LuaLaTeX or pdfLaTeX when using the pgf backend. This is done using either true LaTeX or matplotlib's own TeX parser called Mathtext, depending on your rc settings and whether you have a local LaTeX installation. You can wrap the mathematical expression inside dollar signs ( $) to ensure that matplotlib renders the text using TeX. In Python 2.x you have to specify that a string is unicode with u in front of the string, while in Python 3.x all strings are unicode by default, meaning you can leave out the u. Here \leq stands for " less than or equal", and gives the symbol ≤, meaning the label of the y-axis will be α ≤ β. When you do this, matplotlib will typeset the expression using its own TeX parser, Mathtext. Mathematical operators and symbols are in multiple Unicode blocks. Step 2: Under the Insert tab, click the Symbol option at the top right side of your document. Unicode Technical Report 25 provides comprehensive information about the character repertoire, their properties, and guidelines for implementation. Step 1: Open your Word document and then switch to the Insert tab. To render the expression with TeX, you must wrap the mathematical expression inside dollar signs ( $) in the string. The Unicode Standard encodes almost all standard characters used in mathematics. Plt.ylabel(u'α ≤ β') # In Python 3 you can leave out the `u` If this "less than or equal" symbol is the only math in your code, it is simplest to use a unicode string: import matplotlib.pyplot as plt For more advanced math, TeX is far superior. You can achieve this by using a unicode string or by rendering the string with TeX, depending on how complex your mathematical expression is. ![]()
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