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Chapter 6

Optimisation

Slide to the top, where the lens is flat.

1

Slide to the top

Slide the point up the hill. Watch the line that touches the curve: at the very top it lies flat.

0.511.522.533.54−16−12−8−448121620xyslope 11.25

f(x)=12x−x3f(x) = 12x - x^3 · Still climbing: the slope is positive.

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