Numerical Solution of Multiple Internal Rate of Return with Non-conventional Cash Flows

This paper focuses on solving methods of multiple internal rates return (MIRR) the series non-conventional cash flow when net present value is equal to zero. The rate a popular rule for project acceptance/rejection. When projects has three or more sign variations, (IRR) not easy obtain returns. In his paper, we introduce Descartes’ maximum positive roots, Bolzano Theorem roots in interval, Budan’s (sequence), and Sturm’s (sequence) exact numbers real their locations (intervals) where they lie finally solve problem using Newton-Raphson method approximate solution polynomial equation.