Casio 991 calculator

The basic features display similar expressions to the textbook for comfortable reading design to display and correct input data in list format as well as to display data sets and surrounding data ensure easy and quick calling of pre-implemented formulas for editing and re-execution high-resolution screen provides beautiful graphics every time made to help make office work smooth and efficient feature of entering numbers and displaying them in the form of fractions and exponents and logarithms and roots and other formulas and mathematical symbols as they appear in textbooks variables and calculating stored statistical results in memory can be displayed in lists // specifications name color black material plastic model name CS.FX991ESPLUS2 size 161.5×77×11.1