Janos bolyai biography channel
János bolyai non euclidean geometry
János Bolyai or Johann Bolyai, was a Hungarian mathematician who developed absolute geometry—a geometry that includes both Euclidean geometry and hyperbolic geometry.
János bolyai duel
János Bolyai was a pioneer of non-Euclidean geometry.
Janos bolyai biography channel 7
János Bolyai (born December 15, 1802, Kolozsvár, Hungary [now Cluj, Romania]—died January 27, 1860, Marosvásárhely, Hungary [now Târgu Mureş, Romania]) Missing: biography channel.
Janos bolyai biography channel 6
The János Bolyai Homepage of the Library of the Hungarian Academy of Sciences.