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 Documentation / Mathematica / Built-in Functions / Mathematical Functions / Mathematical Constants  /
Pi

  • Pi is , with numerical value .
  • Mathematical constant (see Section A.3.11).
  • Pi can be entered in StandardForm and InputForm as , pi, p or \[Pi].
  • In StandardForm, Pi is printed as .
  • See the Mathematica book: Section 1.1.3Section 3.2.8.
  • See also Implementation NotesA.9.44.13MainBookLinkOldButtonDataA.9.44.13.
  • See also: Degree.

    Further Examples

    This gives a 50-digit approximation to pi.

    In[1]:=

    Out[1]=

    This is a fundammental identity.

    In[2]:=

    Out[2]=