This includes basic notions such as sets and functions: Properties of sets, definition and properties of functions; logarithms and exponentials: and their properties; basic series summations: ...

Stephen R. Wassell, Superexponentiation and Fixed Points of Exponential and Logarithmic Functions, Mathematics Magazine, Vol. 73, No. 2 (Apr., 2000), pp. 111-119 ...

Those skyrocketing curves tell an alarming story. But logarithmic graphs can help reveal when the pandemic begins to slow.