TY - BOOK AU - Ayman Abdelaziz Bakr Omar AU - Hossam Aly Hassan Fahmy , TI - Hardware implementation of modal interval adder / Subtractor and multiplier / PY - 2012/// CY - Cairo : PB - Ayman Abdelaziz Bakr Omar , KW - Adder / Subtractor KW - Modal intervals KW - Multiplier N1 - Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electronics and Communication; Issued also as CD N2 - Rounding errors in digital computations using floating point numbers may result in totally inaccurate results . One of the mathematical solutions to monitor and control rounding errors is the classical interval arithmetic ( CIA ) . A generalized extension of the classical intervals was presented in 1980 which is the modal intervals ER -