Srinivasa Ramanujan was born exactly 136 years ago.

GH Hardy once rated mathematicians on a scale of 1 to 100 for pure talent. Hardy gave himself a score of 25, his colleague Littlewood a score of 30, Hilbert a score of 80, and Ramanujan a perfect score of 100.

Below is a list of identities discovered by Ramanujan. From Ramanujan

Bernhard Riemann died in 1866 at the age of 39. Here is a list of things named after him.

1/8
Riemann bilinear relations
Riemann conditions
Riemann form
Riemann function
Riemann–Hurwitz formula
Riemann matrix
Riemann operator
Riemann singularity theorem
Riemann surface 2/8
Compact Riemann surface
The tangential Cauchy–Riemann complex
Zariski–Riemann space
Cauchy–Riemann equations
Riemann integral
Generalized Riemann integral
Riemann multiple integral
Riemann invariant
Riemann mapping theorem
Measurable Riemann mapping theorem
Riemann problem