长方体对角线计算
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①本范例演示长方体对角线的计算与可视化;②涉及核心数学概念包括立体几何、勾股定理、空间向量;③构造要点:使用Textfield, If, PointIn, Circle, Point, Line, Rotate, Segment, Intersect, Angle, Sphere, Polygon, OrthogonalLine, Translate等GeoGebra命令和对象进行交互式作图;④适合高中立体几何教学或数学兴趣小组使用。
GeoGebra 命令及参数
Textfield(a) → InputBox1Textfield(b) → InputBox2Textfield(c) → InputBox3Textfield(d) → InputBox4Textfield(f) → InputBox5Textfield(g) → InputBox6If(Length[Mode[l1]] ≟ 0, "No digits repeat!", "Repeated digits exist.") → text4Textfield(h) → InputBox7PointIn(Plane[(0, 0, 0), (1, 0, 0), (1, 1, 0)]) → DCircle(D, (10 * a) + b, zAxis) → ePoint(e) → ELine(D, E) → iRotate(D, ((-π)) / 2, E, Plane[(0, 0, 0), (1, 0, 0), (1, 1, 0)]) → D'Line(D', E) → jSegment(D, E) → kCircle(E, d, Line[E, E + (0, 0, 1)]) → pIntersect(j, p) → F, HSegment(E, H) → lAngle(H, E, D) → αSegment(D, H) → mLine(H, H + (0, 0, 1)) → nSphere(H, c) → oIntersect(n, o) → I, JSegment(H, J) → qSegment(J, D) → rPolygon(D, E, H) → t1, h_1, d_1, e_1Polygon(D, H, J) → t2, j_1, d_2, h_2OrthogonalLine(J, Vector[J, D], Vector[J, H]) → sLine(H, J) → tCircle(J, sqrt((100 * f) + (10 * g) + h), s) → c_1Point(c_1) → KSegment(J, K) → f_1Line(E, E + (0, 0, 1)) → g_1Sphere(E, Radius[c_1]) → uSphere(E, c) → vIntersect(g_1, v) → L, MLine(D, d_1) → i_1Sphere(D, d) → wIntersect(i_1, w) → N, OTranslate(O, Vector[E, M]) → O'Translate(D, Vector[E, M]) → D'_{1}Polygon(D, O, O', D'_{1}) → q1, d_3, o_1, o', d'_{1}Polygon(D'_{1}, M, E, D) → q2, k_1, m_1, e_2, d_4Polygon(M, J, H, E) → q3, m_2, j_2, h_3, e_3Polygon(H, J, O', O) → q4, h_4, j_3, l_1, o_2Polygon(D'_{1}, M, J, O') → q5, n_1, m_3, j_4, p_1Segment(O', D'_{1}) → q_1Segment(D'_{1}, D) → r_1Segment(D, O) → s_1Segment(O, O') → t_1Segment(E, M) → a_1Segment(M, D'_{1}) → b_1Segment(M, J) → f_2Segment(J, O') → g_2Segment(H, O) → i_2Angle(J, H, D) → β
AI 绘图提示语参考
绘制一个长方体,并计算其对角线。首先输入长、宽、高,然后根据输入创建点D、E,并通过旋转和平移生成点D'和E'。接着构造线段DE、D'E'、对角线DH,并计算角度α。利用点H、D、J构造球体和圆,进一步生成点K、J、M等,最终连接这些点形成多个多边形,展示长方体及其对角线。
以上提示语为根据原始绘图命令整理而来,仅供参考。