Geodesic

Volume 98 (2021) no. 2

Sommaire

Collective obituary. Sergey A.~Kuleshov (24.12.1962 -- 15.05.2021)
p. 2-4
Modeling the contours of plant leaves in the GeoGebra environment
p. 5-17
On inequalities in a tetrahedron
p. 18-27
Triangles with specified values of the incircle and circumcircle radii
p. 28-33
Mathematics and new information technologies, finished
p. 34-43
Profit maximization problems in various economic models
p. 44-49
Methods of calculating the number $e$ as a topic of educational research
p. 50-53
School olympiad technologies
p. 54-70
Two notes on the history of mathematics
p. 71-80