Casio fx-991CW Scientific Calculator vs Texas Instruments TI-30XS Multiview
Buy the Casio fx-991CW for high school and college math, science and engineering work: it has more functions, a higher-resolution display and Casio's ClassWiz menu system, and owners rate it well. Buy the TI-30XS MultiView if you want a simple, proven calculator for standardized tests and basic coursework, or if your class already uses TI menus. The Casio is the more capable machine; the TI is the easier one to pick up and is approved for SAT, ACT and AP exams.
- Choose the Casio fx-991CW if you need advanced functions like equation solving, matrices, vectors, complex numbers or spreadsheet-style tables, or if you want a sharper display and a menu layout built for deeper math.
- Choose the TI-30XS MultiView if you want a straightforward four-line calculator for test day and everyday classwork, with familiar TI menus and a protective cover included.
Prices
- Casio fx-991CW Scientific Calculator: $25.99 at staples.com (last seen Nov 1)
- Texas Instruments TI-30XS Multiview: $14.95 at Underwood Distributing Co. (last seen Nov 10)
- Difference: the Texas Instruments TI-30XS Multiview is $11.04 cheaper than the Casio fx-991CW Scientific Calculator at the latest prices (Nov 1 and Nov 10)

