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The Fast Fourier Transform: An Algorithm That Changed the World
The story of the Fast Fourier Transform (FFT) is one of the most significant narratives in the realm of mathematics and technology, revealing its role in myriad applications that permeate daily life, from telecommunications to scientific advancements. The FFT not only enables the functionality of everyday devices such as smartphones and WiFi, but it also had profound implications during the nuclear arms race of the mid-20th century.