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:
“The writer who aims at producing the platitudes which are “not for an age, but for all time” has his reward in being unreadable in all ages.... The man who writes about himself and his own time is the only sort of man who writes about all people and about all time.”
—George Bernard Shaw (1856–1950)
“No domain of nature is quite closed to man at all times.”
—Henry David Thoreau (1817–1862)