You can encourage Keith to make more videos here<p><a href="https:&#x2F;&#x2F;www.patreon.com&#x2F;codingmath?ty=h" rel="nofollow">https:&#x2F;&#x2F;www.patreon.com&#x2F;codingmath?ty=h</a><p>He&#x27;s helped me immeasurably through the years.  I really liked his Sine wave stuff early on in that series.