释义 |
rolle's theorem \ˈrȯlz-, ˈrōlz-\ noun Usage: usually capitalized R Etymology: after Michel Rolle died 1719 French mathematician : a theorem in mathematics: if a curve is continuous, crosses the x-axis at two points, and has a single tangent at every point between the two intercepts, its tangent is parallel to the x-axis at some point between the intercepts |