数线工具

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Point(xAxis) → B
3. If(x(B) - x(A) > 0, "+", "") → sign2
4. If(x(B) - x(A) < 0, "+", "") → sign3
5. If(x(A) > 0, "+", "") → signa
6. If(x(B) - x(A) > 0, "+", "") → signba
7. If(x(B) > x(A), "+", "-") → op2
8. If(x(B) > 0, "+", "") → signb
9. Sequence(Vector[(((k + x(A) - 0.05) * dis), 0.3), (((k + x(A)) * dis), 0.1)], k, 1, Div[x(B) - x(A), dis]) → l2
10. Sequence(Vector[(((x(A) - k + 0.05) * dis), 0.3), (((x(A) - k) * dis), 0.1)], k, 1, Div[x(A) - x(B), dis]) → l4
11. Corner(1) → C
12. If(d ≟ true, textb, "") → textans
13. Sequence(Semicircle[(((k - 0.9 + x(A)) * dis), 0.1), (((k + x(A)) * dis), 0.1)], k, 1, Div[x(B) - x(A), dis]) → l1
14. Sequence(Semicircle[(((x(A) - k) * dis), 0.1), (((x(A) + 0.9 - k) * dis), 0.1)], k, 1, Div[x(A) - x(B), dis]) → l3