Casio fx-991CW

[Dave Britten]

(10-05-2022 05:09 PM)ijabbott Wrote:  

(10-05-2022 11:41 AM)Dave Britten Wrote:  Oh wow, I didn't even notice that. Gross! I think I'll be waiting for a really deep back-to-school discount on this one.

I'll have to read the manual. Perhaps they've done something reasonable like allowing '-' to behave as a unary minus where required, except when used at the beginning of input (when it would insert 'Ans' before the '-' to continue the previous calculation).

You might be right - I think a lot of Casios let you use the subtraction symbol for negative values too.