In mathematics, the prime-counting function is the function counting the number of prime numbers less than or equal to some real number x. It is denoted by (this does not refer to the number π).
Read more about Prime-counting Function: History, Table of π(x), x / Ln x, and Li(x), Algorithms For Evaluating π(x), Other Prime-counting Functions, Formulas For Prime-counting Functions, Inequalities, The Riemann Hypothesis
Famous quotes containing the word function:
“Uses are always much broader than functions, and usually far less contentious. The word function carries overtones of purpose and propriety, of concern with why something was developed rather than with how it has actually been found useful. The function of automobiles is to transport people and objects, but they are used for a variety of other purposes—as homes, offices, bedrooms, henhouses, jetties, breakwaters, even offensive weapons.”
—Frank Smith (b. 1928)