# Direction of the maximum gradient (scalar fields)

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1. Oct 14, 2014

### Kieran

If a question asks for the direction of the maximum gradient of a scalar field, is it acceptable to just use del(x) as the answer or is the question asking for a unit vector?
Thanks

2. Oct 14, 2014

### HallsofIvy

Staff Emeritus
Since the question is "in what direction", you could simply say "in the direction of" $\nabla f$".