With an indexed bond you don't have to do this calculation to get the real rate.

对于物价指数债券,你无需,通过以上计算得到实际利率

耶鲁公开课 - 金融市场课程节选

One of them is the forward rate and the other one is inflation indexed interest rates.

一个是远期利率,另一个是通胀指数化利率

耶鲁公开课 - 金融市场课程节选