Adjective
non-periodic (not comparable)
(astronomy) Taking over 200 years to complete an orbit; especially said of comets.
Edward N. Lorenz, "Deterministic non-periodic flow", Journal of the Atmospheric Sciences, vol. 20, pages 130–141 (1963). Source: Internet
Early observations have revealed a few genuinely hyperbolic (i.e. non-periodic) trajectories, but no more than could be accounted for by perturbations from Jupiter. Source: Internet
Formants Formants are the resonant frequencies of the vocal tract that emphasize particular voice harmonics near in frequency to the resonance or turbulent non-periodic energy ( noise ), near the formant frequency in the case of whispered speech. Source: Internet
Its rotation combines two separate periodic motions into a non-periodic result; to someone on the surface of Toutatis, the Sun would seem to rise and set in apparently random locations and at random times at the asteroid's horizon. Source: Internet
Some (continuous-time) periodic signals become non-periodic after sampling, and some non-periodic signals become periodic after sampling. Source: Internet
They are examples of Fourier series for periodic f and Fourier transforms for non-periodic f. Using the Fourier transform, a general solution of the heat equation has the form : where F is an arbitrary function. Source: Internet