A mathematical constant is a number, which has a special meaning for calculations. For example, the constant π means the ratio of the length of a circle's circumference to its diameter. This value is always the same for any circle.
Value numerical of the constant and link to MathWorld or to OEIS Wiki.
LaTeX: Formula or series in TeX format.
Formula: For use in program Wolfram Alpha.
OEIS: On-Line Encyclopedia of Integer Sequences.
Continued fraction: In the simple form [to integer; frac1, frac2, frac3, ...], overline if periodic.
Year: Discovery of the constant, or dates of the author.
Web format: Value in appropriate format for web browsers.
Nº: Number types.
R – Rational number
I – Irrational number
A – Algebraic number
T – Transcendental number
C – Non-real Complex number
Table of constants and functions
You can choose the order of the list by clicking on the name, value, OEIS, etc..