Ceva-Dreiecke.
Čo s nejednoznačným zadaním slovnej úlohy?
In the paper we deal with a task about two circles touching in a rectangle. The assignment of the task was formulated in a fuzzy way, so solvers understood it differently. We present extracts from the authentic solutions which reflect this phenomenon. We suggest an approach to such tasks, how to solve them and how to assess their solutions.
Combinatorics, group theory and geometric models
Computing a Centerpoint of a Finite Planar Set of Points in Linear Time.
Construction des regulären Sieben- und Dreizehn-Ecks
Construction of a line through a given point to divide a triangle into two parts with areas in a given ratio.
Countable Decompositions of R2 and R3 .
Cutting circles and the Morley theorem.