The internal rate of return of fuzzy cash flows.
An internal rate of return (IRR) of an investment or financing project with cash flow (a0,a1,a2,...,an) is usually defined as a rate of interest r such that a0 + a1(1 + r)-1 + ... + an(1 + r)-n = 0. If the cash flow has one sign change then the previous equation has a unique solution r >...