等比与等差函数端点行为

GeoGebra 命令及参数

1. If(SelectedElement[type] ≟ 1, 0.5, 0.25) → rnd_{neg}
2. If(abs(b_1 / b_2) ≟ 1, Random[3, 10] / 2, b_1 / b_2) → b
3. Random(1, 3) → power_{rnd}
4. Simplify((a * ((a_2 * b_2))^(power_{rnd}))) → geo_a
5. Simplify((a_1 * x) + b_1) → ari
6. If(SelectedIndex[type] ≟ 1, ari, geo) → t
7. If(Max[absendvalues] < 1, 1, Max[absendvalues]) → y_{mx}
8. If(SelectedIndex[type] ≟ 1, 51, Min[26, -1 + floor(abs(log(abs(b), abs(5000000 / (a)))))]) → n_{smax}
9. LaTeX(n, true, true) → tn_1
10. If(n < 100, 1, 10^(Div[n_S - 1, 9] - 1)) → step
11. Sequence((i * step), i, 1, n / step) → plot_x
12. Union(Sequence[Point[{i, t(i)}], i, 1, If[n > 10, 10, n]], Sequence[Point[{(i * step), t((i * step))}], i, 1, n / step]) → plots
13. If(SelectedIndex[type] ≟ 2, If[abs(b) < 1, "0", If[b < 0, "DNE", If[a > 0, "∞", "-∞"]]], If[a_1 > 0, "∞", "-∞"]) → limit
14. TableText(Sequence[If[FractionText[t(i)] ≠ Text[t(i)], (FractionText[t(i)] * ",\,"), ""], i, 1, If[n ≤ 10, n, 10]], {"\\"}, Join[{Sequence[(round(t(i), 6) * ",\,"), i, 1, If[n ≤ 10, n, 10]], {"..."}}]) → text3
15. SelectedIndex(examples) → exampleIndex
16. Element(videxamples, exampleIndex) → exampleElement