EC-4033 (650-0803) Features Faxback Doc.# 8577 This unit is a totally new type of advanced programmable calculator. Besides versatile scientific functions, graph functions also make it possible to produce a wide variety of useful graphs. Manuals calculations can be easily performed following written formulas (true algebraic logic). a replay function is provided that allows confirmation or correction when key operation errors occur. Programs can also be input by following true algebraic logic, so repeat and/or complex calculations are simplified. All of this power built into a compact configuration that folds up to slip right into your pocket. To use EC-4033 to its full potential, be sure to carefully read this manual and keep it handy for future reference. (RLR-11/01/93)