He was responsible for instituting the use of the symbol pi.
Ferdinand von Lindemann proofed that the number Pi is transcendental.
Ferdinand von Lindemann, in 1882 happy pi day!
Carl Louis Ferdinand von Lindemann proved in 1882 that pi is transcendental.
Ferdinand von Lindemann proved, in 1882, that pi was transcendental.
Ferdinand von Lindemann.
Ferdinand von Lindemann
The German mathematician Ferdinand von Lindemann.
Ferdinand von Lindemann, along with his colleague Karl Weierstrass
pi
pi
pi.
pi