HP 30b

The HP 30b (NW238AA, variously codenamed "Big Euro", "Mid Euro" and "Fox"^[1]) is a programmable^[2] financial calculator from HP which was released on 7 January 2010.^[3] The HP 30b is an advanced version of the HP's prior model HP 20b. Featuring a two line alpha numeric display, ability to input data via Reverse Polish Notation, Algebraic and normal Chain algebraic methods, and twelve digit display.

HP 30b

HP 30b
Type	Financial
Manufacturer	Hewlett-Packard
Introduced	2010
Discontinued	2014
Latest firmware	2010-04-05
Predecessor	HP 20b
Cost	USD 20 – 50
Calculator
Entry mode	RPN, Algebraic, Chain
Display type	LCD seven-segment display dot-matrix display
Display size	12+3 digits and 8 characters
CPU
Processor	30 MHz Atmel AT91SAM7L128 (ARM7TDMI core)
Programming
Memory register	50 data and 10 registers
Program steps	290 bytes
Other
Power supply	2× CR2032 batteries (1 required, 1 optional)
Power consumption	0.25 mW
Weight	115 g
Dimensions	77 × 149 × 16 mm

This ARM powered calculator also has some limited scientific functions which is relatively rare in financial calculators. Also, it has a built in Black-Scholes Equation,^[2] for calculating theoretical premium for calls and puts, Modified Internal Rate of Return and Financial Management Rate of Return, a first.

The HP 30b is not allowed in any major exam like CFA Charter exam.

HP 40b

At some point HP planned to release a HP 40b, a version of the HP 30b with added USB port, the capability to load precompiled programs into the calculator from the PC and to use the calculator as an external keypad for a PC. However, only a few prototypes were ever produced.^[1]

WP 31S, WP 34S and WP 34C

HP 30b with overlay for WP 34S

As with the HP 20b, the HP 30b's firmware can be overwritten ("flashed") using a computer and a special cable. Taking advantage of this facility, a team of HP calculator enthusiasts has produced a firmware for converting the 30b into a programmable scientific calculator.^[4] The resulting WP 34S (2011) firmware and user's manual can be downloaded free of charge,^[5][6][7][8] and a special serial cable and keypad overlay can be purchased for a nominal fee.^[9] The WP 34S was also being sold commercially.^[10] A firmware branch with a complex number lock mode is called WP 34C (2015).^[11] The WP 31S (2014) is a stripped-down version of the WP 34S. (The community-developed WP 43S, which is based on the SwissMicros DM42 hardware, is a successor to this project.)

See also

• TI BA II Plus
• TI BA II Plus Professional

References

1. "HP 30b codename(s)?". Hpmuseum.org. Archived from the original on 2018-09-19. Retrieved 2019-08-07.
2. "Buy HP Calculators : Educalc.net". Educalc.net.
3. HP 30b Business Professional Calculator - Overview and Features Archived 2010-08-19 at the Wayback Machine
4. Wright, Gene (2011-06-29). "The 20b / 30b has been repurposed into a scientific calculator - The 34S". HP Communities. Archived from the original on 2015-01-03. Retrieved 2011-08-17.
5. "WP 34S Free Science & Engineering software downloads at SourceForge.net". Retrieved 2012-02-11.
6. Dale, Paul; Bonin, Walter (2012) [2008]. "WP 34S Owner's Manual" (PDF) (3.1 ed.). Retrieved 2017-04-27.
7. Bonin, Walter (2015) [2008-12-09]. WP 34S Owner's Manual (3.3 ed.). CreateSpace Independent Publishing Platform. ISBN 978-1-5078-9107-0.
8. Bonin, Walter (2016-07-11) [2008-12-09]. WP 34S Owner's Manual (4 ed.). CreateSpace Independent Publishing Platform. ISBN 978-1-53366238-5. ISBN 1-53366238-X. (410 pages)
9. "WP 34S Quick Start Guide". Retrieved 2012-02-11.
10. "WP 34S Package". TheCalculatorStore. Retrieved 2011-08-17.
11. Dowrick, Nigel (2015-05-03) [2015-03-16]. "Complex Lock mode for WP-34s". HP Museum. Archived from the original on 2019-04-03. Retrieved 2019-08-07.

External links

• "HP 30b Virtual Calculator". Hewlett Packard. 2012-12-10. Archived from the original on 2016-06-08. Retrieved 2017-09-17.