He also described a binary calculator using marbles. From De progressione Dyadica: This [binary] calculus could be implemented by a machine (without wheels)… provided with holes in such a way ...

or MATH 2000 (brief calculus). The TI-83 (not Plus), TI-86, TI-92 and the TI-92 Plus are no longer manufactured. Certainly these older calculators may still be used in courses allowing any calculator.

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...

We like mechanical calculators like slide rules, but we have to admit that we had not heard of the Ott Derivimeter that ...

Macworld When iOS 18 launched last fall, we got an all-new Calculator app. It’s got some great features, including Math Notes ...

Whether you’re a college student enrolled in a calculus course or a professional accountant with your own firm, having a dedicated calculator is essential to your success. These purpose-built ...