Let 
be the rectangle function, then the Fourier
transform is
=sinc(pik),](/images/equations/FourierTransformRectangleFunction/NumberedEquation1.svg) |
where 
is the sinc function.
Fourier Transform--Rectangle Function
See also
Fourier Transform, Rectangle Function, Sinc FunctionExplore with Wolfram|Alpha
References
Bracewell, R. The Fourier Transform and Its Applications, 3rd ed. New York: McGraw-Hill, pp. 100-101, 1999.Cite this as:
Weisstein, Eric W. "Fourier Transform--Rectangle Function." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/FourierTransformRectangleFunction.html