13: Vector Calculus Last updated Jun 11, 2024 Save as PDF 12.8: Extra Problems for Chapter 12 13.1: Directional Derivatives and Gradients Page ID156070 H. Jerome KeislerUniversity of Wisconsin ( \newcommand{\kernel}{\mathrm{null}\,}\) 13.1: Directional Derivatives and Gradients13.2: Line Integrals13.3: Independence of Path13.4: Green's Theorem13.5: Surface Area and Surface Integrals13.6: Theorems of Stokes and Gauss13.7: Extra Problems for Chapter 13