HP 30b
| Company type | Product |
|---|---|
| Industry | Calculator manufacturing |
| Predecessor | HP 20b |
| Founded | January 7, 2010 |
| Products | Programmable financial calculator |
| Owner | Hewlett-Packard |
The HP 30b (model NW238AA), also known by the codenames "Big Euro," "Mid Euro," and "Fox," is a programmable financial calculator developed by Hewlett-Packard and introduced on January 7, 2010. Serving as a sophisticated upgrade to the HP 20b, this model offers a dual-line alphanumeric screen and supports multiple input methods, including Reverse Polish Notation, Algebraic, and Chain algebraic entry, with a display capable of showing up to twelve digits.
Equipped with an ARM-based processor, the HP 30b provides certain scientific functions rarely found in financial calculators. It includes embedded formulas such as the Black-Scholes equation for option valuation, along with calculations for Modified Internal Rate of Return and Financial Management Rate of Return—both innovations unique to HP calculators at the time.
Use of the HP 30b is disallowed in prominent certification tests, including the CFA Charter examination.
HP 40b
The HP 40b was envisioned as an upgraded version of the HP 30b, featuring enhancements like a USB interface, compatibility with PC programming, and functionality as an external keypad. Despite these plans, only a limited number of prototypes were ever manufactured.
WP 31S, WP 34S and WP 34C
The firmware of the HP 30b can be replaced ("flashed") using a computer and specialized cable. A community of enthusiasts created the WP 34S firmware to convert the device into a fully programmable scientific calculator. Released in 2011, both this firmware and its accompanying user guide are available free of charge, while optional serial cables and keypad overlays can be purchased affordably. The WP 34S was also offered commercially. A variant supporting complex number lock mode is known as the WP 34C (introduced in 2015), whereas the WP 31S (2014) represents a more streamlined version. The successor to this line is the WP 43S, developed by the community and based on SwissMicros DM42 hardware.
See also
External links
- HP 30b Virtual Calculator by Hewlett Packard (2012) – downloadable emulator designed for business calculator simulation