GeoGebra中的Geostix演示
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①本范例演示了在GeoGebra中如何通过几何作图构建复杂的几何图形与现象;②涉及的核心数学概念包括角度、面积、三角形、对数函数、最值优化、组合数学、圆和置信区间;③作图要点——从下方『构造摘要』提炼用到了Circle(圆)、Point(点)、Intersect(交点)、Segment(线段)等GeoGebra命令/对象;④适合高中及以上数学学习者,用于理解几何作图与相关数学概念的应用。
GeoGebra 命令及参数
Circle(A, gr) → cPoint(c) → BCircle(A, re) → dCircle(B, re) → eIntersect(d, e, 1) → CSegment(A, B) → aSegment(C, A) → bSegment(C, B) → fCircle(D, re) → gPoint(g) → ECircle(D, gr) → hCircle(E, gr) → kSegment(D, E) → lCircle(G, gr) → pPoint(p) → HCircle(G, or) → qCircle(H, or) → rIntersect(q, r, 1) → ISegment(G, I) → mSegment(I, H) → nSegment(G, H) → sCircle(J, bl) → tPoint(t) → KCircle(J, pu) → c_1Circle(K, pu) → d_1Intersect(c_1, d_1, 1) → LSegment(J, L) → a_1Segment(L, K) → b_1Segment(K, J) → e_1Circle(P, or) → p_1Point(p_1) → QCircle(P, gr) → q_1Circle(Q, gr) → r_1Intersect(q_1, r_1, 1) → RSegment(P, R) → l_1Segment(R, Q) → m_1Segment(Q, P) → n_1Circle(S, pu) → s_1Point(s_1) → TCircle(S, bl) → t_1Circle(T, bl) → c_2Intersect(t_1, c_2, 1) → USegment(S, U) → a_2Segment(T, U) → b_2Segment(S, T) → d_2Intersect(h, k, 1) → FSegment(D, F) → iSegment(F, E) → j