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Typographical usageEdit


  1. (mathematics, physics) Indicates separate versions of the same variable.
    x and xf might indicate the initial and final value of x
  2. (chemistry) Indicates the number of atoms in a chemical formula.
    HO = 2 atoms of hydrogen and 1 of oxygen

See alsoEdit

Entry-like pages (edit)
Typography Capital letter · Superscript · Subscript
Italics · Boldface · Underline · Strikethrough
Semantics Possessive
Suprasegmentals Repetition