相似变换与交点
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该范例演示了相似变换与交点的概念。通过相似变换,我们可以研究图形的相似性及其性质。涉及的核心数学概念包括相似变换、交点等。作图要点包括使用GeoGebra命令构造相似图形和确定交点。适合高中数学教学和学习。
GeoGebra 命令及参数
Numeric A2(0.4)Numeric B2(0.0)Numeric C2(1.0)Numeric A4(0.0)A4 + 1A5 + 1A6 + 1A7 + 1A8 + 1A9 + 1A10 + 1A11 + 1A12 + 1A13 + 1A14 + 1A15 + 1A16 + 1A17 + 1A18 + 1A19 + 1A20 + 1A21 + 1A22 + 1A23 + 1B2B4 + $A$2B5 + $A$2B6 + $A$2B7 + $A$2B8 + $A$2B9 + $A$2B10 + $A$2B11 + $A$2B12 + $A$2B13 + $A$2B14 + $A$2B15 + $A$2B16 + $A$2B17 + $A$2B18 + $A$2B19 + $A$2B20 + $A$2B21 + $A$2B22 + $A$2B23 + $A$2C2C4 + ((($A$2 * 0.5) * B4) * (3 - C4))C5 + ((($A$2 * 0.500000000000001) * B5) * (3 - C5))C6 + ((($A$2 * 0.500000000000001) * B6) * (3 - C6))C7 + ((($A$2 * 0.500000000000001) * B7) * (3 - C7))C8 + ((($A$2 * 0.500000000000001) * B8) * (3 - C8))C9 + ((($A$2 * 0.500000000000001) * B9) * (3 - C9))C10 + ((($A$2 * 0.500000000000001) * B10) * (3 - C10))C11 + ((($A$2 * 0.500000000000001) * B11) * (3 - C11))C12 + ((($A$2 * 0.500000000000001) * B12) * (3 - C12))C13 + ((($A$2 * 0.500000000000001) * B13) * (3 - C13))C14 + ((($A$2 * 0.500000000000001) * B14) * (3 - C14))C15 + ((($A$2 * 0.500000000000001) * B15) * (3 - C15))C16 + ((($A$2 * 0.500000000000001) * B16) * (3 - C16))C17 + ((($A$2 * 0.500000000000001) * B17) * (3 - C17))