northwolves 发表于 2023-8-1 16:59:21

最小值成立条件: $x=\frac{2n}{2n-3}* (\frac{n-1}{2})^{\frac{1}{3}},y=2* (\frac{n-1}{2})^{\frac{1}{3}}$

王守恩 发表于 2023-8-1 18:01:04

这串数是在慢慢长大,可以有根式解?!
{{0.9608, {x -> 0.124016, y -> 0.344453}}, {1.76276, {x -> 0.387274, y -> 0.576939}}, {2.4196, {x -> 0.664982, y -> 0.720391}}, {2.97638, {x -> 0.931359, y -> 0.81999}},
{3.46274, {x -> 1.18362, y -> 0.895512}}, {3.89712, {x -> 1.42283, y -> 0.95619}}, {4.29145, {x -> 1.65061, y -> 1.0069}}, {4.65392, {x -> 1.86844, y -> 1.0505}}, {4.99034, {x -> 2.07756, y -> 1.08877}}}
Table, {n, 1, 9}]
页: 1 [2]
查看完整版本: p(n)可以有通项公式吗?