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Got ahold of a Casio fx-991ex and CG-50 to match my Classpad II. I'm really impressed with them but there is something about the fx-991ex... (see comments) : r/calculators
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The Pi Button. Where Is The Pi Key On A Casio Classwiz fx GT85x Calculator, Converting Pi To Decimal - YouTube
Casio fx-991ES Plus giving me weird results, is it faulty or can there be a setting I'm missing? : r/calculators
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