积分中值定理的可视化与证明
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①本范例通过映射图和图形可视化积分中值定理,并展示其证明思路;②涉及的核心数学概念包括积分、平均值、函数图像;③作图要点:使用了GeoGebra命令如Integral, Intersect, Extremum, Textfield, Max, Min, Vector, Line, Segment, Point, Polygon等;④适合高中及以上数学学习者,用于理解积分中值定理及其应用。
GeoGebra 命令及参数
Integral(P, a, b) → IntgrlIntersect(P, e) → A, CExtremum(P, a, b) → M,Textfield(P) → inputBox1Textfield(a) → inputBox2Textfield(b) → inputBox3Max({y(M), P(a), P(b)}) → MAXMin({y(M), P(a), P(b)}) → MINVector(Max_{f}, S_2) → uVector(Min_{f}, T_1) → vVector(Z_*, U_2) → wLine(Max_{f}, S_2) → hLine(U_2, Z_*) → iLine(T_1, Min_{f}) → jVector(C_*, Z_*) → zSegment(x_a, x_b) → kPoint(yAxis) → XVector(X, P_X) → lIntegral(Intgrl / (b - a), a, b) → mvtIntegral(MAX, a, b) → MaxRecIntegral(MIN, a, b) → MinRecVector(P_X, CheckX) → rPolygon({(a, 0), a}) → poly1Polygon({(a, 0), (a, P(y(X))), (b, P(y(X))), (b, 0)}) → MVRecSegment(Max_{f}, Min_{f}) → sSegment(P0, U_2) → t