???????2????????????????????
?????????????????????????2016-08-17
???????2,?????????????,?????????????
“???t?”???????????????????????????????????????λ??????????????????ε??50%???????????????????100%??50%??25%??12.5%??6.25%??3.125%??????6??????????????λ??????????????2?????????????仰????????
????￥????????????????????ò?????????????￥??????????????????????????￡?
??????????????1???????1/2???????У?????????????????Sn=(a1*(1-q)^n)/(1-q)
????n=6,???????????? Sn=63/64
?????????????????????????????????1.5625%
????????????????1.56???????????????
????????????????50W????????????????300%??????????????????????????????15.23??
1.523???????????????
???????2??????????? ????1-13???????????
???????:??????????????????40407?????????????40407???????????α? may
