PlanetMath (more info)
 Math for the people, by the people. Sponsor PlanetMath
Encyclopedia | Requests | Forums | Docs | Wiki | Random | RSS  
Login
create new user
name:
pass:
forget your password?
Main Menu
sections
Encyclopædia
Papers
Books
Expositions

meta
Requests (236)
Orphanage
Unclass'd (1)
Unproven (540)
Corrections (46)
Classification

talkback
Polls
Forums
Feedback
Bug Reports

downloads
Snapshots
PM Book

information
News
Docs
Wiki
ChangeLog
TODO List
Copyright
About
References to 'great circle'
1. antipodal isothermic points by pahio
2. area of a spherical triangle by Mathprof
3. biangle by Wkbj79
4. Euclidean geometry of space by pahio
5. geodesic by Mathprof
6. geometry as the study of invariants under certain transformations by rspuzio
7. limiting triangle by Wkbj79
8. non-Euclidean geometry by Wkbj79
9. projective plane by yark