Machin-like formulae
List of named Machin-like formulae (alphabetical)
Escott's Identity (M000000105)
Euler's Machin-like formula (M000000474)
Gauss's identity (M000000222)
Hermann's formula (M000000457)
Hutton's formula (M000000424)
Machin's formula (M000000001)
Strassnitzky's formula (M000000476)
Takano's formula (M000000213)