Check out MotorMusic: outro song lyrics: lyrics: Blackpenredpen Blackpenredpen (+ C whoo) He's a calculus teacher, uses black and red. He does math for fun (integrals), diff eqs get done. Usin' complex numbers, doin' marathons. And as always, that is it. **specials thanks to Zach and Jonah for your amazing work!** integral of sin(x)/x from 0 to pi/2: See Laplace marathon: If you enjoy my videos, then you can click here to subscribe Shop Math: Wear Math: Support Math: Follow Math: More Math: Blue Microphone: Expo Markers (black, red, blue):