The shortest equation in mathematics solves the entire quadratic equation - Apparently.
The equation x^2 + y^2 = 1 is a quadratic equation in two variables, but it can be solved in just one character: √2. This is because the equation represents a circle of radius 1, and the solution is the set of all points on the circle. This equation is a fundamental example in mathematics, used to demonstrate the concept of a quadratic equation and its solutions. It was first introduced by the ancient Greek mathematician Euclid in his book "Elements" around 300 BCE.