Time domain is the analysis of mathematical functions, physical signals or time series of economic or environmental data, with respect to time. In the time domain, the signal or function's value is known for all real numbers, for the case of continuous time, or at various separate instants in the case of discrete time. An oscilloscope is a tool commonly used to visualize real-world signals in the time domain. A time-domain graph shows how a signal changes with time, whereas a frequency-domain graph shows how much of the signal lies within each given frequency band over a range of frequencies.
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Famous quotes containing the words time and/or domain:
“Alicia Huberman: Look, I’ll make it easy for you. The time has come when you must tell me that you have a wife and two adorable children, and this madness between us can’t go on any longer.
T.R. Devlin: I bet you’ve heard that line often enough.
Alicia: Right below the belt every time. Oh that isn’t fair, Dev.
Devlin: Skip it. We have other things to talk about. We have a job.”
—Ben Hecht (1893–1964)
“In the domain of art there is no light without heat.”
—Victor Hugo (1802–1885)