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:
“A baby is a full time job for three adults. Nobody tells you that when you’re pregnant, or you’d probably jump off a bridge. Nobody tells you how all-consuming it is to be a mother—how reading goes out the window and thinking too.”
—Erica Jong (20th century)
“In the domain of art there is no light without heat.”
—Victor Hugo (1802–1885)