“The Joy of Mathematics” S:1 E:19 The Joy of Approximating with Calculus

S:1 E:19 The Joy of Approximating with Calculus Exploiting the idea of the derivative, we can approximate just about any function using simple polynomials. This lecture also shows why a formula sometimes known as “God’s equation” (involving e, i, p, 1, and 0) is true, and how to calculate square roots in your head.