1 P = F V 1 + i n {\displaystyle P={FV \over {1+in}}}
2 P = F V ( 1 + i ) n {\displaystyle P={FV \over (1+i)^{n}}}
3 P = F V ( 1 − i n ) {\displaystyle P=FV(1-in)}
4 e = [ 1 + i m m ] m − 1 {\displaystyle e={\left[1+{i_{m} \over m}\right]^{m}}-1}
Interest Rate Markets Quiz 3
http://meta.wikimedia.org/wiki/Help:Formula