It's a casio fx - 991es plus scientific calculator 2nd Edition with the following features and functions.
. 2nd Edition Casio fx-991es plus
. Fraction calculations
. combination and permutations
. statistics
. 7 variable memories
. Table function
. comes with a new slide on head case
. Equation calculations
. integration and differential calculations
. matrix calculations
. vector calculations
. complex number calculations
. calc function
. solve function
. fx 417 functions
. display expression same as a text book
. two way power ( battery and solar )
. 10 digit montissa + 2 digit exponential display
. dot matrix - high resolution screen provides beautiful looking graphs every time
Feel free to contact me to place in your order to get it and have it delivered