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Lesson 17 of 20 · about 16 min

The gradient

Put the two partial derivatives side by side and you get an arrow, the gradient, which points straight uphill. Its length is how steep the steepest way is. You'll spin a direction arrow on the pool site to find the steepest climb and the level paths, then trace where rainwater runs, which tells the builders exactly where to put the drain.

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In this lesson you'll learn:

  • Gradient
  • Directional derivative

Free to try in F09 Calculus for CS:

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