The Sharp EL-W531T WriteView calculator has advanced display features which allow the user to show fractions, square roots, surds amd logarithms to any base including base e, powers, reciprocals, trigonometric ratios, hyperbolic functions etc. just as they are written and used in textbook layout. Additonally there are powerful statistical analysis features, random number features and the ability to work in different base number arithmetic. An affordable, feature packed calculator ideal for students and professionals alike.