The most important equation…

As a scientist, I dealt with many equations. As a full-time writer, not so much. Many people know Newton’s F = ma. That equation, and its rotational form, τ = Iα, appear in Survivors of the Chaos (the first novel contained in The Chaos Chronicles Trilogy Collection). That’s about it for equations in my fiction.

Some people might think that Einstein’s equation linking the curvature tensor of space and time to the matter-energy tensor in General Relativity is the most important one in science,...