Casio fx 115ms scientific calculator casio fx 115ms s uh the casio fx 115ms scientific calculator has a twin line lcd display and dual power source ndash solar and battery br br the main display is a conventional 10 digit type plus 2 digit exponent while the upper line of the display is a dot matrix type which displays the formula being calculated the fx 115ms also uses s vpam logic super visually perfect algebraic method allowing a formula to be entered in the same sequence as writ