For a quick overview of the pedagogical significance of tau, compare figures 6, 7, and 8. I learned figure 6 in high school trig, but by "learn" I mean I basica

For a quick overview of the pedagogical significance of tau, compare figures 6, 7, and 8. I learned figure 6 in high school trig, but by "learn" I mean I basically memorized it without a deep understanding of what was going on. Figures 7 & 8 unveil what I had been missing.