plural of unit function

plural of real function

(mathematics) a completely multiplicative function on the positive integers that is defined as equal to one for a special value and zero otherwise:

plural of control function

plural of distribution function

plural of partition function

(logic) Synonym of Boolean function

plural of generating function

(mathematics, physics) A function of seven variables of the form f(x,y,z,t;v_x,v_y,v_z) that gives the number of particles per unit volume in single-particle phase space.

(mathematics) A formal power series with one indeterminate, whose coefficients encode a sequence that can be studied by algebraic manipulation of the series; any one of several generalizations, such as to encode more than one sequence or use more than one indeterminate.