- Definition of directional derivative ⇐ 1 Directional Derivatives
- Definition of gradient ⇐ 1 Directional Derivatives
- Direction of steepest ascent or descent ⇐ 2 The Gradient of a Function
- Gradients and contour plots ⇐ 2 The Gradient of a Function
- Tangent planes to level surfaces ⇐ 2 The Gradient of a Function
- Applications of directional derivatives and gradients ⇐ 2 The Gradient of a Function