圆的方程 by Gabriel Cheow (2)

GeoGebra 命令及参数

1. Random(4, 20) → number
2. Sequence(RandomElement[{-1, 1}], n, 1, 4) → pm
3. If(IsPrime[number], number + 1, number) → num
4. DivisorsList(num) → l1
5. Factors(num) →
6. RandomElement(l1) → b_{1}
7. mean(b_{1}, b_{2}) → bm
8. RandomElement(Remove[l1, {b_{1}, b_{2}}]) → c_{1}
9. mean(c_{1}, c_{2}) → cm
10. Sequence(Random[-10, 10] / 2, n, 1, 4) → vars
11. Circle(C, A) → c
12. Tangent(A, c) → f,
13. Line(C, D) → g
14. RandomElement({1, 2, 3}) → type