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Continuous-space Fourier transform of the 2D "rect" function (Practice Problem)

Compute the Continuous-space Fourier transform (CSFT) of

$ f(x,y)= \left\{ \begin{array}{ll} 1, & \text{ if } |x|<\frac{1}{2} \text{ and } |y|<\frac{1}{2}\\ 0, & \text{ else}. \end{array} \right. $

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Abstract algebra continues the conceptual developments of linear algebra, on an even grander scale.

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