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Casio fx-991EX classWiz user manual and commands.
Found this incredible function on my Fx991EX if you press shift and Option button on left corner it creates a QR code that can be scanned with a phone to see graphing
Table Function on Casio fx-991EX Classwiz | Learn to use Table function optimally on Casio fx-991EX classwiz and explore functions. | By Casio Calculators Bangladesh | Facebook
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