多项式的加减法

GeoGebra 命令及参数

1. Corner(1) → C
2. If(op > 0, "+", "-") → sign0
3. If(coeffy1 > 0, "+", "") → signy1
4. If(coeffy2 > 0, "+", "") → signy2
5. If(coeffy3 > 0, "+", "") → signy3
6. If(coeffz2 > 0, "+", "") → signz2
7. If(coeffz3 > 0, "+", "") → signz3
8. If(coeffz1 > 0, "+", "") → signz1
9. If(op > 0, coeffy2, (-coeffy2)) → coeffy4
10. If(op > 0, coeffy3, (-coeffy3)) → coeffy5
11. If(op > 0, coeffz2, (-coeffz2)) → coeffz4
12. If(op > 0, coeffz3, (-coeffz3)) → coeffz5
13. If(coeffy4 > 0, "+", "") → signy4
14. If(coeffy5 > 0, "+", "") → signy5
15. If(coeffz4 > 0, "+", "") → signz4
16. If(coeffz5 > 0, "+", "") → signz5
17. If(op > 0, coeffx2, (-coeffx2)) → coeffx4
18. If(op > 0, coeffx3, (-coeffx3)) → coeffx5
19. If(coeffx4 > 0, "+", "") → signx4
20. If(coeffx5 > 0, "+", "") → signx5
21. If(anscoeffx ≟ 0, "", If[anscoeffx ≟ 1, lx(m), If[anscoeffx ≟ -1, "-" + (lx(m)), anscoeffx + lx(m)]]) → ansx
22. If(anscoeffy ≟ 0, "", If[anscoeffy ≟ 1, ly(m), If[anscoeffy ≟ -1, "-" + (ly(m)), If[anscoeffy > 1, anscoeffy + ly(m), anscoeffy + ly(m)]]]) → ansy
23. If(anscoeffz ≟ 0, "", If[anscoeffz ≟ 1, lz(m), If[anscoeffz ≟ -1, "-" + (lz(m)), If[anscoeffz > 1, anscoeffz + lz(m), anscoeffz + lz(m)]]]) → ansz
24. If(ansx ≠ "", If[anscoeffy > 0, "+", ""], "") → signyans
25. If(ansx ≟ "", If[ansy ≟ "", "", If[anscoeffz > 0, "+", ""]], If[anscoeffz > 0, "+", ""]) → signzans
26. If(coeffx1 ≟ 1, "", If[coeffx1 ≟ -1, "-", Text[coeffx1]]) → cx1
27. If(coeffx2 ≟ 1, "", If[coeffx2 ≟ -1, "-", Text[coeffx2]]) → cx2
28. If(coeffx3 ≟ 1, "", If[coeffx3 ≟ -1, "-", Text[coeffx3]]) → cx3
29. If(coeffy1 ≟ 1, "", If[coeffy1 ≟ -1, "-", Text[coeffy1]]) → cy1
30. If(coeffy2 ≟ 1, "", If[coeffy2 ≟ -1, "-", Text[coeffy2]]) → cy2
31. If(coeffy3 ≟ 1, "", If[coeffy3 ≟ -1, "-", Text[coeffy3]]) → cy3
32. If(m > 2, If[coeffz1 ≟ 1, "", If[coeffz1 ≟ -1, "-", Text[coeffz1]]], Text[coeffz1]) → cz1
33. If(m > 2, If[coeffz2 ≟ 1, "", If[coeffz2 ≟ -1, "-", Text[coeffz2]]], Text[coeffz2]) → cz2
34. If(coeffx4 ≟ 1, "", If[coeffx4 ≟ -1, "-", Text[coeffx4]]) → cx4
35. If(coeffx5 ≟ 1, "", If[coeffx5 ≟ -1, "-", Text[coeffx5]]) → cx5
36. If(coeffy4 ≟ 1, "", If[coeffy4 ≟ -1, "-", Text[coeffy4]]) → cy4
37. If(coeffy5 ≟ 1, "", If[coeffy5 ≟ -1, "-", Text[coeffy5]]) → cy5
38. If(m > 2, If[coeffz4 ≟ 1, "", If[coeffz4 ≟ -1, "-", Text[coeffz4]]], Text[coeffz4]) → cz4
39. If(m > 2, If[coeffz3 ≟ 1, "", If[coeffz3 ≟ -1, "-", Text[coeffz3]]], Text[coeffz3]) → cz3
40. If(m > 2, If[coeffz5 ≟ 1, "", If[coeffz5 ≟ -1, "-", Text[coeffz5]]], Text[coeffz5]) → cz5