How I make my thumbnails, requested, blackpenredpen, math for fun

angle additional formula: a*sin(x)+b*cos(x)=Acos(x+𝛼)
https://youtu.be/DY5J3Xn3SoM


blackpenredpen,
math for fun

In this video I explicitly calculate the volume of a ball of radius r in R^n. The method I’m presenting uses only multivariable calculus and the disk method from single-variable calculus, but we’ll also visit some other goodies like the Beta function and…

Thanks to Helen Czerski for making the video with me!
https://www.helenczerski.net/

Helen is physicist, oceanographer and broadcaster in the Department of Mechanical Engineering at University College London.

You should check out her book Storm in a Teacup.…