复利

lì xī shì àn jì dù yǐ fù lì jì suàn

利息是按季度以复利计算。

Interest is compounded quarterly.

tā zì jǐ xiǎng chū le fù lì de gài niàn

他自己想出了复利的概念。

He figured out the notion of compound interest on his own.