电梯问题
几何画板及绘图内容加载中,请稍等……
该范例演示了电梯在不同楼层间的移动过程。涉及的核心数学概念包括函数、向量和轨迹。通过使用GeoGebra命令如Point、Vector、Sequence、Polygon等,可以动态展示电梯的运动路径。适合高中数学教学,特别是解析几何和函数图像的教学。
GeoGebra 命令及参数
Point(xAxis) → CPoint(xAxis) → GPoint(xAxis) → APoint(xAxis) → EPoint(xAxis) → DPoint(xAxis) → BVector((0, 0), (0, a)) → vSequence(Segment[Element[points, i] + (v * i), G + (v * i)], i, 1, 5) → list2Vector((0, 0), (0, b)) → wSequence(If[x(Element[points, i]) ≤ x(G), Polygon[Element[points, i] + (v * i), G + (v * i), 4], Polygon[G + (v * i), Element[points, i] + (v * i), 4]], i, 1, 5) → list4Vector((0, 0), F) → uSequence(Text[x(Element[points, i]), Element[points, i] + u], i, 1, Length[points]) → list1Line((0, 0), (1, 0)) → dLine((m, 4 + h), d) → eCircle((m, 4 + h), Sum[list2] / 2) → cIntersect(c, e) → H, IPolygon((m + s / 2, (-b)), (m - s / 2, (-b)), 4) → poly1Segment(H, I) → fSequence(If[x(Element[points, i]) > x(G), x(Element[points, i]) - x(G), 0], i, 1, 5) → aboveSequence(If[x(Element[points, i]) < x(G), x(G) - x(Element[points, i]), 0], i, 1, 5) → belowSum(above) → abvSum(below) → belSegment((x(A), -1.4), (x(A) + abv, -1.4)) → pSegment((x(A), -1.7), (x(A) + bel, -1.7)) → q