periodic function

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periodic function

(ˌpɪərɪˈɒdɪk)
n
(Mathematics) maths a function, such as sin x, whose value is repeated at constant intervals
References in periodicals archive ?
which yields to the periodicity condition [[integral].sup.[theta]+2n.sub.[theta]] sin([theta]-[tau])G([tau])d[tau]=0,
(D3) a periodicity condition that the relation f (X + d,Y,Z) = exp(i[alpha]d) f (X,Y,Z) holds and the phase constant in Y is [beta] for any component of diffracted light;
The CM trajectories of this phase can be calculated in the same way by considering the symmetry and periodicity conditions.