CASIO fx-991CW

[Matt Agajanian]

(09-04-2023 12:16 AM)Quadratica Wrote:  Wrong answer on 991CW but 991EX gets it right.

In mathI/MathO mode

2-1
EXE....ouput =1
/2
EXE......output =1/2
SHIFT EXE.....convert to approx gives 0.25 but it should be 0.5

This happens with other numbers too and a reset makes no difference.
However, entering 1/2, EXE and then SHIFT EXE does give 0.5.

Looks to me that, for example in this case, if you’ll notice, Shift EXE grabs the last calculation and puts it in Ans and that is what’s used to process the Shift EXE operation. I think the way the Ans operation processes is where the glitch is.