Mathematician:Ludolph van Ceulen

Mathematician

German-Dutch mathematician best known for his calculation of the the value of $\pi$.

The Ludolphine number is the expression of the value of $\pi$ to $35$ decimal places:

$3 \cdotp 14159 \, 26535 \, 89793 \, 23846 \, 26433 \, 83279 \, 50288 \ldots$

Nationality

Dutch, of German origin

History

• Born: 28th January 1540 in Hildesheim, Bishopric of Hildesheim, Holy Roman Empire
• Died: 31 December 1610 in Leiden, Dutch Republic

Theorems and Definitions

• Ludolphine number

Definitions of concepts named for Ludolph van Ceulen can be found here.

Publications

• 1596: Van den Circkel ("On the Circle")

Sources

• John J. O'Connor and Edmund F. Robertson: "Ludolph van Ceulen": MacTutor History of Mathematics archive

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): A List of Mathematicians in Chronological Sequence
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): A List of Mathematicians in Chronological Sequence