# Mathematical Constants

I | |

Infinity | |

Pi | |

Degree | : degrees to radians conversion factor |

GoldenRatio | |

E | |

EulerGamma | Euler's constant |

Catalan | Catalan's constant |

Khinchin | Khinchin's constant |

Glaisher | Glaisher's constant |

Euler's constant EulerGamma is given by the limit . It appears in many integrals, and asymptotic formulas. It is sometimes known as the Euler-Mascheroni constant, and denoted .

Catalan's constant Catalan is given by the sum . It often appears in asymptotic estimates of combinatorial functions. It is variously denoted by , , or .

Khinchin's constant Khinchin (sometimes called Khintchine's constant) is given by . It gives the geometric mean of the terms in the continued fraction representation for a typical real number.

Glaisher's constant Glaisher (sometimes called the Glaisher-Kinkelin constant) satisfies , where is the Riemann zeta function. It appears in various sums and integrals, particularly those involving gamma and zeta functions.

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