Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Casio FX-991CW is the current ClassWiz scientific calculator, the successor to the long-running FX-991EX. It shows fractions and other math as they look in a textbook, uses an icon menu and cursor keys to reach functions, and adds spreadsheet and QR-code graphing through Casio's ClassPad.net. It suits high school and college students in algebra, trig, stats and science courses. Against the FX-991EX it trades the multi-function button layout for a simpler menu-driven interface, which some long-time users find slower at first.
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Owners generally rate the FX-991CW highly as a school and exam calculator, praising the clear display and the simpler menu. The most common complaint is the shift away from the FX-991EX's direct buttons, which experienced users find slower.
The Casio FX-991CW CLASSWIZ is an advanced scientific calculator. Its Natural Textbook Display shows fractions as fractions, the way they appear in a textbook.
Cursor keys let you move around the screen and make on-screen selections. An icon menu leads to each function. The keys are rounded for easy input, and a 4-tone display makes it easier to see where to make your entries.
The calculator includes spreadsheet functionality. To view a graph, generate a QR code and scan it, and the graph is displayed on CP.net.
