A constant function is function whose value does not change as its parameters vary. The
function graph of a one-dimensional constant function is a straight line .
The derivative of a constant function is
(1)
and the integral is
(2)
The Fourier transform of the constant function is given by
(3)
where
is the delta function .
See also Constant Map ,
Identity Function ,
Linear Function ,
Piecewise
Constant Function ,
Fourier Transform--1 ,
Zero Function
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References Spanier, J. and Oldham, K. B. "The Constant Function ." Ch. 1 in An
Atlas of Functions. Washington, DC: Hemisphere, pp. 11-14, 1987. Referenced
on Wolfram|Alpha Constant Function
Cite this as:
Weisstein, Eric W. "Constant Function."
From MathWorld --A Wolfram Web Resource. https://mathworld.wolfram.com/ConstantFunction.html
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