### Quick description

One can calculate the derivative of a function by calculating its Fourier transform , then calculating the inverse Fourier transform of (where is the square root of minus one). This method is tedious for analytic functions, but is very convenient if one needs to calculate the derivative of a function that is defined as a discrete data set.

### Prerequisites

Fourier analysis

5 weeks 2 daysago14 weeks 12 hoursago15 weeks 8 hoursago44 weeks 2 daysago1 year 12 weeksago