Machin's Formula
There are a whole class of Machin-Like Formulas with various numbers of terms (although only four such formulas withonly two terms). The properties of these formulas are intimately connected with Cotangent identities.See also 196-Algorithm, Gregory Number, Machin-Like Formulas, Pi
- Great Icosicosidodecahedron
- Great Icosidodecahedron
- Great Icosihemidodecacron
- Great Icosihemidodecahedron
- Great Inverted Pentagonal Hexecontahedron
- Great Inverted Retrosnub Icosidodecahedron
- Great Inverted Snub Icosidodecahedron
- Great Pentagonal Hexecontahedron
- Great Pentagrammic Hexecontahedron
- Great Pentakis Dodecahedron
- Great Quasitruncated Icosidodecahedron
- Great Retrosnub Icosidodecahedron
- Great Rhombicosidodecahedron (Archimedean)
- Great Rhombicosidodecahedron (Uniform)
- Great Rhombic Triacontahedron
- Great Rhombicuboctahedron (Archimedean)
- Great Rhombicuboctahedron (Uniform)
- Great Rhombidodecacron
- Great Rhombidodecahedron
- Great Rhombihexacron
- Great Rhombihexahedron
- Great Snub Dodecicosidodecahedron
- Great Snub Icosidodecahedron
- Great Sphere
- Great Stellapentakis Dodecahedron