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:
“Fair Hope! our earlier Heaven! by thee
Young Time is taster to Eternity.
The generous wine with age grows strong, not sour,
Nor need we kill thy fruit to smell thy flower.
Thy golden head never hangs down
Till in the lap of Love’s full noon
It falls and dies: Oh no, it melts away
As doth the dawn into the day,
As lumps of sugar lose themselves, and twine
Their subtle essence with the soul of wine.”
—Abraham Cowley (1618–1667)
“While you are divided from us by geographical lines, which are imaginary, and by a language which is not the same, you have not come to an alien people or land. In the realm of the heart, in the domain of the mind, there are no geographical lines dividing the nations.”
—Anna Howard Shaw (1847–1919)