Noun
English Wikipedia has an article on:simple functionWikipedia
simple function (plural simple functions)
(mathematical analysis) Any complex-valued measurable function whose range is finite.
Unlike Hegel's progress model of history, which moves by stages, each containing its own logic of growth and decline, the economic model develops as the simple function of one money-variable over time, with a long-term trend which increases monotonically. John Carroll
We cling to the idea that success is a simple function of individual merit and that the world in which we all grow up and the rules we choose to write as a society don't matter at all. Malcolm Gladwell