# Multivariable Calculus TOC * [Partial-Derivatives](Partial-Derivatives.md) * [Differentiability-of-Multivariable-Functions](Differentiability-of-Multivariable-Functions.md) * [Directional-Derivative](Directional-Derivative.md) * [Divergence](Divergence.md) * [Gradient](Gradient.md) * [Jacobian-vs-Gradient-vs-Hessian](Jacobian-vs-Gradient-vs-Hessian.md)