5.1 INTRODUCTION5.2 DEVELOPMENT OF THE FFT ALGORITHM WITH RADIX-25.3 DECIMATION-IN-FREQUENCY FFT ALGORITHM WITH RADIX-25.4 DECIMATION-IN-TIME FFT ALGORITHM WITH RADIX-25.5 DECIMATION-IN-FREQUENCY FFT ALGORITHM WITH RADIX-45.6 INVERSE FAST FOURIER TRANSFORM5.7 PROGRAMMING EXAMPLES USING C CODEREFERENCES