Waveform
The visual shape or graph of a signal or wave as a function of time or spatial position.
Governing formula
y = f(x - v t)
SI unit
N/A
In depth
Waveforms can be simple pure sinusoids or complex combinations of fundamental frequencies and harmonics (square, triangle, sawtooth, or noise).
Examples in the real world
Viewing an audio signal on an oscilloscope screen to analyze its harmonic content.