- See also
- References
In mathematics, a Gregory number, named after James Gregory, is a real number of the form:[1]
where x is any rational number greater or equal to 1. Considering the power series expansion for arctangent, we have
Setting x = 1 gives the well-known Leibniz formula for pi. Thus, in particular,
is a Gregory number.
See also
- Størmer number
References
1. ^{{cite book|first=John H.|last=Conway|authorlink =John H. Conway|author2=R. K. Guy |title=The Book of Numbers|publisher=Copernicus Press|location=New York|year=1996|pages=241–243}}
{{Real numbers}}{{numtheory-stub}} 1 : Sets of real numbers
- Casmalia
- Casmalia, California
- Casman Centre
- Casma Province
- Casma River
- CASMAS
- Casmerodius albus
- CASMII
- CASMIRC
- Casmir effect
- Casmir Effect
- Casmir Pulaski
- C. A. Smith
- CASM (travel)
- Cas Mudde
- Casnate con Bernate
- Casner Motor Racing Division
- Casner Township, Jefferson County, Illinois
- Casnewydd-ar-Wysg
- Casnigo
- CASNO
- Casnodyn
- Casnovia
- CAS Number
- CAS-number