The story
Named after Joseph Liouville (1809–1882), a French mathematician.
Etymology from Wiktionary, CC BY-SA 4.0.
Liouville number
Today it means: An irrational number x with the property that, for every positive integer n, there exist integers p and q with q > 1 and such that 0<|x-p/q|<1/(qⁿ). Full definition →