4.4 Tangent Planes and Linear Approximations
= 4.4 Tangent Planes and Linear Approximations
{c}
Online text: https://openstax.org/books/calculus-volume-3/pages/4-4-tangent-planes-and-linear-approximations
Cited passages: Calculus Volume 3, Tangent-plane equation (4.24), differentiability definition (4.26), and total differential (4.27).