matplotlibの数式設定

matplotlib.pyplotの数式設定

https://matplotlib.org/stable/users/explain/text/usetex.html

いろいろやるには、ext.usetexをTrueにするのが楽そう

$ \LaTeXをinstallしておく必要あり

https://matplotlib.org/stable/users/explain/customizing.html#customizing-with-matplotlibrc-files

code:.matplotlibrc (抜粋)

## ***************************************************************************

## * LaTeX *

## ***************************************************************************

## For more information on LaTeX properties, see

## https://matplotlib.org/stable/users/explain/text/usetex.html

#text.usetex: False # use latex for all text handling. The following fonts

# are supported through the usual rc parameter settings:

# new century schoolbook, bookman, times, palatino,

# zapf chancery, charter, serif, sans-serif, helvetica,

# avant garde, courier, monospace, computer modern roman,

# computer modern sans serif, computer modern typewriter

#text.latex.preamble: # IMPROPER USE OF THIS FEATURE WILL LEAD TO LATEX FAILURES

# AND IS THEREFORE UNSUPPORTED. PLEASE DO NOT ASK FOR HELP

# IF THIS FEATURE DOES NOT DO WHAT YOU EXPECT IT TO.

# text.latex.preamble is a single line of LaTeX code that

# will be passed on to the LaTeX system. It may contain

# any code that is valid for the LaTeX "preamble", i.e.

# between the "\documentclass" and "\begin{document}"

# statements.

# Note that it has to be put on a single line, which may

# become quite long.

# The following packages are always loaded with usetex,

# so beware of package collisions:

# geometry, inputenc, type1cm.

# PostScript (PSNFSS) font packages may also be

# loaded, depending on your font settings.

## The following settings allow you to select the fonts in math mode.

#mathtext.fontset: dejavusans # Should be 'dejavusans' (default),

# 'dejavuserif', 'cm' (Computer Modern), 'stix',

# 'stixsans' or 'custom'

## "mathtext.fontset: custom" is defined by the mathtext.bf, .cal, .it, ...

## settings which map a TeX font name to a fontconfig font pattern. (These

## settings are not used for other font sets.)

#mathtext.bf: sans:bold

#mathtext.bfit: sans:italic:bold

#mathtext.cal: cursive

#mathtext.it: sans:italic

#mathtext.rm: sans

#mathtext.sf: sans

#mathtext.tt: monospace

#mathtext.fallback: cm # Select fallback font from ['cm' (Computer Modern), 'stix'

# 'stixsans'] when a symbol cannot be found in one of the

# custom math fonts. Select 'None' to not perform fallback

# and replace the missing character by a dummy symbol.

#mathtext.default: it # The default font to use for math.

# Can be any of the LaTeX font names, including

# the special name "regular" for the same font

# used in regular text.

#2025-05-21 11:14:48