Ludolph van Ceulen
German-Dutch mathematician (*1540 – †1610)
Ludolphus A. Collen · 鲁道夫·范·科伊伦 · ルドルフ・ファン・コーレン · 루돌프 반 쿨렌
- Born
- 28 January 1540, Hildesheim
- Died
- 31 December 1610, Leiden
- Sport
- fencing
- Occupation
- mathematician, university teacher, fencer
Ludolph van Ceulen (German: [ˈluːdɔlf fan ˈkɔʏlən], Dutch: [ˈlydɔl(ə) fɑŋ ˈkøːlə(n)]; 28 January 1540 – 31 December 1610) was a German-Dutch mathematician from Hildesheim known for the Ludolphine number, his calculation of the mathematical constant pi to 35 digits.
External links
Facts from Wikidata Q310771 (CC0); quoted introduction from English Wikipedia (CC BY-SA 4.0). Data retrieved 2026-10-22.
Data: Wikidata (CC0 1.0); Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.