Detecting electrophysiological events - Abdallah HAYAR

Fourier series decomposes a periodic functionor periodic signal into a sum of simpleoscillating functions, namely sines and cosinesThe additive synthesis of a square wavewith an increasing number of harmonicsThe convention is that a sawtooth waveramps upward and then sharply drops.Superposition of sinusoidal wave basisfunctions (bottom) to form a sawtoothwave (top); the basis functions havewavelengths λ/k (k = integer) shorterthan the wavelength λ of the sawtoothitself (except for k = 1).