Fourier transform


Fourier transform

In mathematical analysis, an integral transform useful in solving certain types of partial differential equations. A function's Fourier transform is derived by integrating the product of the function and a kernel function (an exponential function raised to a negative complex power) over the interval from to +. The Fourier transform of a function g is given by . Such transforms, discovered by Joseph Fourier, are particularly useful in studying problems concerning electrical potential.

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