Lainekuju tunnuseks on ühe muutuja, nt aja t, perioodiline funktsioon, millel on üks mitmest iseloomulikust kujust: saehamba-, siinus-, ruut- või kolmnurkkuju.
A waveform feature is a periodic function of one variable (the time t, for example) with one of several characteristic shapes: sawtooth, sine, square, or triangle.
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