# Carl Louis Ferdinand von Lindemann

**Carl Louis Ferdinand von Lindemann** (

1852 -

1939) was a German mathematician, noted for his proof, published in

1882, that

&pi is a

transcendental number, i.e., it is not a zero of any

polynomial with

rational coefficients. His methods were similar to those used nine years earlier by

Charles Hermite to show that

*e*, the base of natural logarithms, is transcendental. Before the publication of Lindemann's proof, it was known that

*if* π is transcendental, then the ancient and celebrated problem of

squaring the circle by straightedge and compass could not be solved.

See also Lindemann-Weierstrass theorem.

*This article is a stub. You can help Wikipedia by fixing it.* (*For example, ***who** proved the resulted asserted above to have been known **before** Lindemann's proof?)