作者Hydrisk (Fear...)
看板Yup00-02
标题Re: 一张发票的价值
时间Mon Feb 16 10:25:51 2009
修正一下公式
=(3/1000-3/10000-3/100000-3/1000000-3/10000000-3/100000000-1/100000000)*200
+(2/1000)*200+(3/10000-3/100000-3/1000000-3/10000000-3/100000000-1/10000000
0)*1000+(3/100000-3/1000000-3/10000000-3/100000000-1/100000000)*4000+(3/100
0000-3/10000000-3/100000000-1/100000000)*10000+(3/10000000-3/100000000-1/10
0000000)*40000+(3/100000000-1/100000000)*200000+1/100000000*2000000
=1.367632
一张发票值台币 1.367632
所以一个月累积一百张得没去对奖的话
就损失136元耶
※ 引述《Hydrisk (Fear...)》之铭言：
: 今天无聊算算一张发票值多少钱
: =(3/1000-3/10000-3/100000-3/1000000-3/10000000-3/100000000)*200+(2/1000)*200
: +(3/10000-3/100000-3/1000000-3/10000000-3/100000000)*1000+(3/100000-3/1000000
: -3/10000000-3/100000000)*4000+(3/1000000-3/10000000-3/100000000)*10000+(3/100
: 00000-3/100000000)*40000+3/100000000*200000+1/100000000*2000000
: =1.370184
: 一张发票值台币 1.370184
: 所以一个月累积一百张得没去对奖的话
: 就损失137元耶
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