Science · Literature · Philosophy · 1728–1777

Johann Heinrich Lambert

Polymath who proved that pi is an irrational number

Did you know?He was the first person to introduce hyperbolic functions into the field of trigonometry.

Johann Heinrich Lambert (German:; French: Jean-Henri Lambert; 26 or 28 August 1728 – 25 September 1777) was an Alsatian polymath from the Republic of Mulhouse—then an associate of the Swiss Confederacy—who made fundamental contributions to mathematics, physics (particularly optics), philosophy, astronomy, and map…

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