HiPER Calc Pro is an advanced version of HiPER Scientific Calculator. The calculator has up to 100 digits of significand and 9 digits of exponent. It detects repeating decimals and numbers in it can be also entered as fractions or converted to fractions. You can also switch to the “expression” mode where you can write expressions in a natural way and watch your calculations. When possible, an expression is simplified and the result is displayed as an expression using fractions, square roots and ? constant. The multiline display can be turned on in tablets to show the complete history of calculations and to provide access the previous results. The users can choose from several high-quality themes.