Casio Fx-991es Plus Natural Display Scientific Calculator
dual power supply w/ the solar panel gives the calculator unlimited power
exclusive Natural Display Textbook Technology that makes the display look just like a textbook
comes with a multi-replay function that allows you to scroll though your numbers and scroll through previous calculations
comes with many mode functions and allows you to set up the calculator the way you want it!
BONUS: comes with a slide on hard-case and dust cover!
This CASIO fx-991es plus calculator has all the advanced calculating functions. Such as: cos/ tan/ RCL/ ENG/ CALC/ parentheses/ multi-view scrolling/ graphing/ M+/ sin/ (-)/ ln/ log/ x^x/ and many many more. 40 metric conversions and 40 scientific constants are also available. It even has Matrix?Vector Calculations and List-Based Statistics (STAT Data Editor).