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:
“Time is a very bankrupt and owes more than he’s worth to
season.
Nay, he’s a thief too: have you not heard men say,
That Time comes stealing on by night and day?”
—William Shakespeare (1564–1616)
“You are the harvest and not the reaper
And of your domain another is the keeper.”
—John Ashbery (b. 1927)