Casio fx-9860GII Graphing Calculator
- 1500 KB flash ROM storage
- 9 new probability functions, plus chi-squared GOF
- REF and RREF matrix functions, unit conversion, random integers
- eActivity and spreadsheet apps built in
- Backlit LCD for visibility
- Unit-to-unit and unit-to-computer data transfer
- Direct connection to Casio projectors
- 4 A batteries, included
Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A capable graphing calculator for algebra, statistics and data work, with a backlit screen and a built-in spreadsheet. The listing does not say which exams allow it, so check your test rules first.
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ASIN: B0023I9QCUModel: FX-9860GIICategory: Graphing Calculators
Overview
Graphing functions, running regressions and building spreadsheets all happen on this Casio graphing calculator through an icon-based menu. Data moves between calculators or to a computer, and the unit connects directly to Casio projectors for classroom display.
Statistics coverage carries this calculator, with probability functions, goodness-of-fit testing, new regression types and pie and bar chart output. A backlit display helps in dim rooms. Missing from the listing are screen resolution, exam approval and whether a transfer cable ships with it.
Who it's for
Students in statistics, precalculus and science courses get matrix row reduction, probability tools and a spreadsheet in one device. Someone who only needs basic arithmetic or trig would carry far more calculator than required.
Pros and cons
- Row reduction with REF and RREF
- Chi-squared goodness-of-fit test built in
- Spreadsheet and eActivity apps included
- Backlit LCD for dim classrooms
- Exam approval status not listed
- Requires four disposable batteries
- Manager software is a separate item
Performance notes
Speed of everyday work depends on the icon menu, which puts each application one selection away instead of buried in nested lists. Flash memory sets how many programs and files the unit can store. The backlight decides readability in a dark lecture hall.
Specifications
| Brand | Casio |
|---|---|
| Model | FX-9860GII |
| Dimensions & fit | |
| Item weight | 0.49 pounds |
| Item dimensions | 2.5 × 11 × 7.5 inches |
| Other details | |
| Batteries | 4 A batteries (included) |
| Menu | Icon-based |
| Built in apps | eActivity, spreadsheet |
| Display | Backlit LCD |
| Flash memory | 0.002 GB |
| Graph types | X=f(Y), pie charts, bar graphs |
| Math functions | REF/RREF, random integers, unit conversion, chi-squared GOF, new regression types |
| Probability functions | 9 new functions |
Frequently asked questions
Can the Casio fx-9860GII graph X as a function of Y?
Yes. Graphing X=f(Y) is listed, along with pie charts and bar graphs.