p4m格子
几何画板及绘图内容加载中,请稍等……
该范例演示了p4m格子的构造。涉及的核心数学概念包括对称性、变换和几何作图。通过使用Midpoint、Vector、Segment、Line、Mirror、Rotate等GeoGebra命令,构建了p4m格子的几何结构。适合中学阶段的学生和教师使用。
GeoGebra 命令及参数
Midpoint(A, B) → EMidpoint(B, D) → FMidpoint(D, C) → GMidpoint(C, A) → HMidpoint(C, B) → IVector(A, B) → uVector(A, C) → vVector(C, D) → wVector(B, D) → aSegment(H, F) → bSegment(E, G) → cSegment(J, K) → eSegment(K, L) → fSegment(K, M) → gSegment(K, N) → hSegment(I, A) → jSegment(I, E) → kLine(A, D) → lLine(C, B) → mLine(H, F) → nLine(E, G) → pLine(G, F) → qLine(F, E) → rLine(E, H) → sLine(H, G) → tMirror(cell1a, c) → cell1bRotate(cell1, 90*°, I) → cell2Rotate(cell1, 180*°, I) → cell3Rotate(cell1, 270*°, I) → cell4Sequence(Translate[Sequence[Translate[tile, Vector[(n * u)]], n, -3, 3], Vector[(m * v)]], m, -3, 3) → tiling