Last month I appeared for my Biology mid-sem exam. I discovered **Hardy-Weinberg Equation**, which states that:

The Hardy-Weinberg equation is a mathematical equation that can be used to calculate the genetic variation of a population at equilibrium. The Hardy-Weinberg equation is expressed as:

You can understand this equation here:

Now the interesting point for me here was that Hardy preferred his work to be considered *pure mathematics*, perhaps because of his detestation of war and the military uses to which mathematics had been applied. He made several statements similar to that in his *autobiography (A Mathematician’s Apology)*:

“I have never done anything ‘useful’. No discovery of mine has made, or is likely to make, directly or indirectly, for good or ill, the least difference to the amenity of the world.”