Rolle's theorem

noun \ˈrlz-, ˈrōlz-\

Definition of ROLLE'S THEOREM

:  a theorem in mathematics: if a curve is continuous, crosses the x-axis at two points, and has a tangent at every point between the two intercepts, its tangent is parallel to the x-axis at some point between the intercepts


Michel Rolle †1719 French mathematician
First Known Use: circa 1891


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May 29, 2015
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