Today we will be discussing frequency domain versus time domain. My name is- What’s up everyone? The name is Nick Ben and I’m an engineer here at Keysight and welcome to this episode of What the RF! In the last episode we discussed what a spectrum analyzer or signal analyzer is and the various measurements…

# Tag: fourier

## But what is a Fourier series? From heat flow to circle drawings | DE4

Here, we look at the math behind an animation like this, what’s known as a “complex Fourier series”. Each little vector is rotating at some constant integer frequency, and when you add them all together, tip to tail, they draw out some shape over time. By tweaking the initial size and angle of each vector,…

## Pure Fourier series animations for 12 oddly satisfying minutes

First Fourier Series: The Eight Note [Music] First Fourier Series, 10x Zoom First Fourier Series, 100x Zoom End of First Fourier Series, Start of Second Fourier Series Second Fourier Series: The Sigma/Sum Symbol End of Second Fourier Series, Start of Third Fourier Series Third Fourier Series: England, United Kingdom End of Third Fourier Series, Start…

## But what is the Fourier Transform? A visual introduction.

This right here is what we’re going to build to, this video: A certain animated approach to thinking about a super-important idea from math: The Fourier transform. For anyone unfamiliar with what that is, my #1 goal here is just for the video to be an introduction to that topic. But even for those of…