Contour Plot 绘图指南

GeoGebra 命令及参数

1. Polygon((x_{min}, y_{min}), (x_{max}, y_{min}), (x_{max}, y_{max}), (x_{min}, y_{max})) → poly1, b, c, d, e
2. Segment(B02, B01) → a
3. RemoveUndefined(Join[Zip[Mirror[{Roots[f0(a, x), y_{min}, y_{max}]}, y = x] + (a, 0), a, Sequence[x_{min} + ((x_{max} - x_{min}) / N_P * i), i, 0, N_P]]]) → P1xxy
4. RemoveUndefined(Join[Zip[Reverse[{Roots[f0(x, a), x_{min}, x_{max}]}] + (0, a), a, Sequence[y_{min} + ((y_{max} - y_{min}) / N_P * i), i, 0, N_P]]]) → P2yyx
5. Textfield(v_1) → inputBox2
6. Textfield(f) → inputBox3
7. Textfield(N_C) → inputBox1
8. Textfield(x_{min}) → inputBox4
9. Textfield(x_{max}) → inputBox5
10. Textfield(y_{max}) → inputBox6
11. Textfield(z_{max}) → inputBox7
12. Textfield(y_{min}) → inputBox8
13. Textfield(z_{min}) → inputBox9
14. PointIn(poly1) → PTest
15. Point(a, 1 - zzii_B) → A
16. Textfield(N_P) → inputBox10
17. Sum(Sequence[If[f0(x(PTest), y(PTest)) - f0(x(Element[lr01, i]), y(Element[lr01, i])) > 0, 1, 0], i, 1, 11]) → ext1
18. Zip((x(a), y(a), z0), a, Join[{P1xxy, P2yyx}]) → list1
19. Length(list1) → Lä
20. Textfield(v) → inputBox11
21. Textfield(step) → inputBox12
22. Sequence(Element[list1, i], i, k, k + step) → M01
23. Function(f(a, b), a, x_{min} - 0.2, x_{max} + 0.2, b, y_{min} - 0.2, y_{max} + 0.2) → g