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org: Subscripts and superscripts

 
 11.7.2 Subscripts and superscripts
 ----------------------------------
 
 Just like in LaTeX, ‘^’ and ‘_’ are used to indicate super- and
 subscripts.  Again, these can be used without embedding them in
 math-mode delimiters.  To increase the readability of ASCII text, it is
 not necessary (but OK) to surround multi-character sub- and superscripts
 with curly braces.  For example
 
      The mass of the sun is M_sun = 1.989 x 10^30 kg.  The radius of
      the sun is R_{sun} = 6.96 x 10^8 m.
 
    If you write a text where the underscore is often used in a different
 context, Org’s convention to always interpret these as subscripts can
 get in your way.  Configure the variable ‘org-use-sub-superscripts’ to
 change this convention.  For example, when setting this variable to
 ‘{}’, ‘a_b’ will not be interpreted as a subscript, but ‘a_{b}’ will.
 
 ‘C-c C-x \’
      In addition to showing entities as UTF-8 characters, this command
      will also format sub- and superscripts in a WYSIWYM way.
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