John Casey (mathematician)
(1820-1891)
Irish geometer
menu
Add to my lists
About
Jump to
John Casey (12 May 1820, Kilbehenny, County Limerick, Ireland – 3 January 1891, Dublin) was a respected Irish geometer. He is most famous for Casey's theorem on a circle that is tangent to four other circles, an extension of Ptolemy's theorem. However, he contributed several novel proofs and perspectives on Euclidean geometry. He and Émile Lemoine are considered to be the co-founders of the modern geometry of the circle and the triangle.
Key details
edit section
| Born |
12 May 1820 Kilbehenny, County Limerick, Ireland
|
| Died |
3 January 1891 (aged 70) Dublin
|
| Zodiac | Taurus |
| Tags | Add tag |
Family members
Parents
0
Add parent
Siblings
0
Add sibling
Other family members
0
Add family member
Connections
Friends & associates
Add friend/associate
John Casey (mathematician) dating history
0Children
0No records found.
Scholars
Please be the first to contribute to this page!
Family
Parents
0
Add parent
Siblings
0
Add sibling
Children
0
Add child
Other family members
0
Add family member
Friends & associates
Add friend/associate
Missing information for John Casey (mathematician)
- missing gender
- missing height
- missing hair color
- missing eye color
- missing ethnicity
- add banner photo
- add photos to gallery
Lists
18
Facts and figures
8
Similar profiles
10
Activity
Top contributors today
Be the first to contribute today
Tags
Featured contributors
Couples by country
USA · UK · Canada · Australia · France · Germany · India · China · South Korea · Japan · Spain · MexicoCouples by decade
1900s · 1910s · 1920s · 1930s · 1940s · 1950s · 1960s · 1970s · 1980s · 1990s · 2000s · 2010s · 2020sADVERTISEMENT
ADVERTISEMENT
