![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 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](https://preview.redd.it/b4afcauvzvw51.jpg?width=640&crop=smart&auto=webp&s=d3334fa4fd3698a31e27bbbc44d24afb29982c3d)
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
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Taking cube roots on a simple “scientific” calculator y x or using shift x y 27 y x = or 27 shift x y 3 = ppt download
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