The infinite geometric series is any series of the form      `sum_(n=0)^infty ar^n`. 

In differential equations, mixing problems are used to model concentrations of a substance dissolved in a fluid. This can include anything from salt content in water to pollution in air. When doing mixing problems, we make the following assumptions:

The O'Conner one Rep Max Weight calculator computes the approximate maximum weight one can lift using the O'Conner formula. 

The SIR Epidemic Model provides information on the increase or decrease of an epidemic based on the infection rate, recovery rate, total population, initial susceptible population, initial infected population and the initial recovered population.