And then in the even case I've got to do a square and the divide.
如果是偶数情况的话,我还要再做一次除法和求平方。
Then to get the monthly payment, you take the square bracketed thing and you divide by the mortgage balance and that's the monthly payment; that's how it's calculated.
如果要算每月偿还额,你用贷款余额,除以这个方括号的值,这样就得出每月偿还额,这就是每月偿还额的计算方法
And in the even case, I'd square, divide by half, call this again: in the odd case, I go b minus 1 and then multiply by a.
就直接求a的平方的二分之b次方,如果是奇数的话,就去求a的b-1次方乘以a,以此递归下去。
Because the square root of 10,000 is 100, whatever the standard deviation of the portfolio is, you would divide it by 100 and it would become really small.
因为一万的平方根是一百,无论这个投资组合的标准差是多大,当除以100后就都变得很小很小了。
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