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 house means a family house, a place specially meant for putting children and men in so as to restrict their waywardness and distract them from the longing for adventure and escape they’ve had since time began.”
—Marguerite Duras (b. 1914)
“You are the harvest and not the reaper
And of your domain another is the keeper.”
—John Ashbery (b. 1927)