Waveforms

mathematical curve that describes a smooth repetitive oscillation; continuous wave

waveform (usually sinusoidal) that is modulated (modified) with an input signal for the purpose of conveying information

pseudoscience - the attempt to predict various aspects of a person's life through simple mathematical cycles; not to be confused with scientific term "biological rhythm"

thumb|350px|sine wave|Sine, square, triangle, and sawtooth waveforms. right|thumb|A sine, square, and sawtooth wave at 440 Hz right|thumb|A composite waveform that is shaped like a teardrop. right|thumb|A waveform generated by a synthesizer

type of non-sinusoidal waveform

type of non-sinusoidal waveform

non-sinusoidal waveform named for its triangular shape

method of radio transmission, in which a sinusoidal carrier wave is switched on and off. Information is carried in the varying duration of the on and off periods of the signal, e.g. by Morse code

peak divided by the Root mean square (RMS) of the waveform