二次方程例题QF.2.3

GeoGebra 命令及参数

1. Point(yAxis) → A
2. Vector(A, B) → u
3. Vector(B, C) → v
4. Textfield(g) → inputBox1
5. Textfield(f) → inputBoxf
6. Sequence(-3, 3, dx) → N
7. Zip(Vector[(2, g(z)), (4, f(g(z)))], z, N) → fgx_*
8. Zip(Vector[(0, z), (2, g(z))], z, N) → g_*
9. Zip((z, g(z)), z, N) → Pg_*
10. Zip((z, f(g(z))), z, N) → Pfg_*
11. Zip(Vector[(0, z), (4, f(g(z)))], z, N) → qx_*
12. TableText(Transpose[{Append["x", N], Append["g(x)", g(N)], Append["f(g(x))", f(g(N))]}]) → Table