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 &math.g; is given by . Such transforms, discovered by Joseph Fourier, are particularly useful in studying problems concerning electrical potential.
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