increasing function and decreasing function

monotone decreasing function

monotonic decreasing function

monotonically decreasing function

non-decreasing function

rigorous increasing decreasing function

fast decreasing algorithm of objective function

rapidly decreasing C∞ function

delta function (=δ-function)

function， function key

Analgesia function and anti-inflammation function

calibration function or curve [function]

characteristic function (= eigen-function)

characteristic function [of meromorphic function]

characteristic function and type-function

dual function of smarandache LCM function

exceptional function and shared function

function group， function grouping

function of function