Question: is casio fx-991es a programmable calculator?
Answer: As per Casio site, fx-991ES (ES plus/MS/EX Classwiz) are non programmable. I call Casio fx-991ES (ES plus/MS/EX Classwiz) a semi-programmable calculator. Casio fx-9860 series calculators are programmable calculators. ... They are stored in calculator memory.