道路設計 - 拼圖

By William
at 2007-11-30T11:44
at 2007-11-30T11:44
Table of Contents
100
A───────B
|\ /|
| \ 100/√3/ |
| \ / |
| -------- | 100
| / \ |
| / \ |
|/ \|
D───────C
比例大概這樣
總合273
簡易解法:AD跟BC的中垂線是到A、D,B、C的最短距離
猜想應該是對稱的,就在中線上設兩點對稱點,剩下的就設未知數
把總長度用未知數表示,微分求極值而已
完整的介紹就看推文的高手推薦的書吧^^
--
┌──────────────────────────┐
│┌ ▉ ▉ ▉ ▉ ▉ ▉ ▉ ▉ ▉ ▉┐│
││ ▏▉ ▏▉ ▉ ▉◣ ◢◣ ◢││
││ ▉ ▉ ▉ ▉◤ ◥◤ ◥││
└└ ── ── ▉ ▉ ▉ ▉ ▉ ▉ ▉ ▉┘┘
--
Tags:
拼圖
All Comments

By Charlotte
at 2007-11-30T19:50
at 2007-11-30T19:50

By Ida
at 2007-12-02T10:06
at 2007-12-02T10:06

By Charlotte
at 2007-12-04T22:40
at 2007-12-04T22:40

By Erin
at 2007-12-09T21:02
at 2007-12-09T21:02

By Olivia
at 2007-12-10T14:11
at 2007-12-10T14:11

By Linda
at 2007-12-12T16:42
at 2007-12-12T16:42

By Selena
at 2007-12-17T06:13
at 2007-12-17T06:13

By Vanessa
at 2007-12-20T18:59
at 2007-12-20T18:59

By Isla
at 2007-12-22T08:50
at 2007-12-22T08:50

By John
at 2007-12-24T10:44
at 2007-12-24T10:44

By Aaliyah
at 2007-12-28T18:49
at 2007-12-28T18:49

By Caroline
at 2008-01-02T00:43
at 2008-01-02T00:43

By Harry
at 2008-01-04T15:28
at 2008-01-04T15:28

By Caroline
at 2008-01-06T11:27
at 2008-01-06T11:27
Related Posts
妓女從良,猜一好萊塢女明星

By Dinah
at 2007-11-30T09:32
at 2007-11-30T09:32
台北玩具婦幼用品大展暨兒童博覽會(96.12.14~17)

By Edith
at 2007-11-30T04:27
at 2007-11-30T04:27
自我滿足數 002

By Ina
at 2007-11-30T01:17
at 2007-11-30T01:17
寶石棋

By Audriana
at 2007-11-30T00:26
at 2007-11-30T00:26
寶石棋

By Brianna
at 2007-11-30T00:18
at 2007-11-30T00:18