Rhapsody of Pi - 拼圖
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By Madame
at 2008-01-17T05:55
at 2008-01-17T05:55
Table of Contents
※ 引述《yjd (origin of love)》之銘言:
: 1. 相信多數人都有聽過這樣的題目
: "用特定數字 創造出其他數字" 如:用兩個4 兩個5 造出15
: 或 用四個4 造出任何正整數
: 現在 我們玩點特別的 規則如下
: -請根據下列規定造出1~20等整數之算式
: 所有算式只能限定以下符號: π + - ╳ / √ ( ) [] (高斯符號)
: 當然π=3.1415... [a]= a(為整數) 或 比a小的最大整數
: 所有符號可以任你重複利用 但希望使用"π"的個數愈少愈好
: 做個示範 2 = [ π - (π/π)] 當然答案可以再更簡潔
: 你能想到幾個解呢?
1 = [√π]
2 = [π-[√π]]
3 = [π]
4 = [π+ [√π]]
5 = [π╳√π]
6 = [π + π]
7 = [π+π+[√π]]
8 = [π╳π-√π]
9 = [π╳π]
10 = [π╳π+[√π]]
11 = [π╳π+√π]
12 = [[π╳π]+π]
13 = [π╳π+π]
14 = [π╳π╳√π]-[π]
15 = [π] ╳ [π╳√π]
16 = [π+ [√π]] ╳ [π+[√π]]
17 = [π╳π╳√π]
18 = [[π]╳[π+π]]
19 = [π╳(π+π)]
20 = [π+ [√π]] ╳ [π╳√π]
π個數分別為
1:1,3
2:2,4,5,6,9
3:7,8,10,11,12,13,15,17,18,19
4:14,16,20
--
: 1. 相信多數人都有聽過這樣的題目
: "用特定數字 創造出其他數字" 如:用兩個4 兩個5 造出15
: 或 用四個4 造出任何正整數
: 現在 我們玩點特別的 規則如下
: -請根據下列規定造出1~20等整數之算式
: 所有算式只能限定以下符號: π + - ╳ / √ ( ) [] (高斯符號)
: 當然π=3.1415... [a]= a(為整數) 或 比a小的最大整數
: 所有符號可以任你重複利用 但希望使用"π"的個數愈少愈好
: 做個示範 2 = [ π - (π/π)] 當然答案可以再更簡潔
: 你能想到幾個解呢?
1 = [√π]
2 = [π-[√π]]
3 = [π]
4 = [π+ [√π]]
5 = [π╳√π]
6 = [π + π]
7 = [π+π+[√π]]
8 = [π╳π-√π]
9 = [π╳π]
10 = [π╳π+[√π]]
11 = [π╳π+√π]
12 = [[π╳π]+π]
13 = [π╳π+π]
14 = [π╳π╳√π]-[π]
15 = [π] ╳ [π╳√π]
16 = [π+ [√π]] ╳ [π+[√π]]
17 = [π╳π╳√π]
18 = [[π]╳[π+π]]
19 = [π╳(π+π)]
20 = [π+ [√π]] ╳ [π╳√π]
π個數分別為
1:1,3
2:2,4,5,6,9
3:7,8,10,11,12,13,15,17,18,19
4:14,16,20
--
Tags:
拼圖
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at 2008-01-19T21:04
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