Euler equation e^(ix) = cos(x) + i*sin(x) alone is worth more than Erdos did in his entire life. Euler laid foundations for complex numbers analysis. His other

Euler equation e^(ix) = cos(x) + i*sin(x) alone is worth more than Erdos did in his entire life. Euler laid foundations for complex numbers analysis. His other contributions have been already covered in this thread.