Exponential function and Mathematical function

Exponential function noun - A function in which an independent variable appears as an exponent.

Mathematical function and exponential function are semantically related. In some cases you can use "Mathematical function" instead a noun phrase "Exponential function".

Mathematical function noun - Mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function.

Exponential function and mathematical function are semantically related. Sometimes you can replace phrase "Exponential function" with "Mathematical function", this phrases are similar.