PV of Vanilla Swaps

I did a search and couldn’t find it, and my LII books are at home, and I need to value an interest rate swap. Can one of you be so kind and post the formula ( I think it was the Z4/Z1 + Z2 etc) and the other info so I can value one. Thanks in advance

I think you are thinking of the formula for calculating the fixed rate of the swap. Is that what you are trying to do?

Yeah, I actually remembered that. The thing I forget is the whole thing with valuing like a bond. Thanks