Where is Frequency in the output of the FFT?

The output of the FFT can be quite confusing. All you are presented with is a list of complex numbers that, at first glance, don't tell you anything about the frequencies present in your signal. In this video, we find out how to find the frequency information in the output of the FFT. eBook: How the Fourier Series Works https://www.amazon.com/dp/B0B1BY5H6T 0:00 - Introduction 0:37 - Ident 0:42 - The different types of Fourier Transform 1:18 - Building signals out of sinusoids 2:05 - Properties of a sinusoid 2:22 - The Magnitude graph 2:49 - Which frequencies does the FFT test? 4:42 - Equation for calculating the frequency 4:56 - An example 5:31 - This video's challenge 5:58 - End Screen