Gradient

$\nabla f$ = $(\frac{\partial }{\partial x_1}f,\cdots ,\frac{\partial }{\partial x_n}f)$

Where:

• $f:{\mathbb{R}}^n\to \mathbb{R}$ is a scalar field
• $\nabla :=(\frac{\partial }{\partial x_1},\cdots ,\frac{\partial }{\partial x_n})$ is the Del or Nabla Vector Operator