one fable-low hijack cell
pair Gradient / Vector
envelope en_arrow
ordering AB
effort low
English with arrow '→' — '{X} → {Y}'
verdictpicked Gradient (first-offered)
· classifierA
· tiernone
response (200 chars)
**Gradient = a vector of partial derivatives.**
For a scalar function of several variables, f(x₁, x₂, …, xₙ), the gradient packages all its rates of change into a single vector:
$$\nabla f = \left(
neighbors