The Most Fun Formulas
We also don't want to have to calculate these one year at a time. Just like with compound interest, we would also like to know the value of an annuity using formulas. Formulas are given on the side. Keep in mind that R and i are the equivalent of one another, as are t and n. You could see these formulas appear with R or i interchangeably and n and t interchangeably. That may sound complicated, but in the end that ?(1+R)?^t always stays together. It's just a matter of finding it and seeing what works around it.