This is a specially designed equation that enables you to join two audio samples. It can be used when you intend on having two very loud tracks playing at the same time yet want to somewhat-clearly hear both.
This solves the problem of each audio track being half as loud when both are combined. It can similarly be applied to sound effects, though I may need to design a higher-dimensional version of this equation for that type of thing.
IMPLEMENTATION HAS SINCE BEEN PROVEN WRONG.
There is likely to be a way to generalize this to a higher number of dimensions, which I may eventually attempt to do. For now my substituted method is to use it in a "binary combination" fashion like shown above.