Putting Casio fx-991CW in perspective.

[wb.c]

I think that the fact that the spreadsheet data is not lost when switching modes basically forgives the missing multi-statement colon. You can also use f(x) and g(x) inside the spreadsheet mode which makes it way more useful. Stat data is kept even after power cycling, so that's also nice. 60 minute time-out is nice.

The simplified layout is definitely an effort to enter into the lower grade classrooms. The 991ex definitely had its learning curve. The new 991cw is definitely slower, but more self-explanatory (in most cases). Some things, like switching between fraction and decimal view were total fails.