LowerSum 指令
来自GeoGebra Manual
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- LowerSum[ <Function>, <Start x-Value>, <End x-Value>, <Number of Rectangles> ]
- LowerSum[Function, Number a, Number b, Number n]
- Yields the lower sum of the given function on the interval [a, b] with n rectangles.
- 备注: This command draws the rectangles for the lower sum as well.