NO.PZ2015120604000001
问题如下：
The interest rate is known as 6%. If an investor invest $1000 now, what will the investor earn in 10 years later?
选项：
A.$558.
B.$1,518.
C.$1,791.
解释：
C is correct.
N = 10; I/Y = 6; PV = -1,000; PMT = 0; CPT FV = $1,790.85
是否只有当PMT=0时，才可以用公式FV=PV乘以（1+r/m）的m次方来计算？或者说这个公式是年金公式的一种特殊形式（只有当PMT=0）?
