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HP 30b Business Professional US$43

The HP 30b is their mid-level RPN financial calculator. It is aimed primarily at professionals in real estate, finance, accounting, and business.

It is the best bargain in the premium financial calculator market, with some advanced features found on no other financial calculators, being comparable to more expensive models.

Note: For international deliveries, I can ship it in an envelope instead of a box, reducing the shipping fee to US$15 (instead of $27+). However, the calculator is not quite as well protected in an envelope. Please email me for details.

Physical Characteristics

• 149 mm by 77 mm by 16 mm (5.87" by 3.03" by 0.63")
• 113 g (4.0 oz) with batteries
• Metallic-infused transparent faceplate with textured gray slides and glossy black back
• Hard plastic keys with traditional HP "click" feedback
• Rigid synthetic case
• Transparent keyboard overlay for programming
• HP part number NW238AA (Data Sheet)

Technical Specifications

• 2 line alphanumeric display (top line with 8 dot matrix characters and 11 indicators, bottom line with 12+3 digits) with adjustable contrast
• Atmel AT91SAM7L128 ARM7 processor (30 MHz)
• 6 KB RAM, 2 KB battery-backed (50 slots for pairs of statistical or cashflow data, plus 10 storage registers, available to the user)
• 128 KB Flash ROM
• Two CR2032 batteries, providing 9 months of typical use
• 12 digits displayed with 3-digit exponent
• Prompts in English, Spanish, French, and German

Calculating Environments

• Traditional RPN (Reverse Polish Notation) with four-level stack
• AOS-style algebraic, with 12 pending operations
• Chain algebraic, like the 10bII

Communications

• None supported by HP
• Serial port header behind battery door and JTAG connector (connects to AT91SAM-ICE) inside the calculator for developers
• 10-pin and 8-pin footprints accessible inside calculator for 8 digital IO and 4 ADC channels

Programmability

• Macro-style key recording (290 bytes in 10 program slots)
• Externally programmable by developers via JTAG interface

Financial Capabilities

• Time value of money (including Canadian mortgages)
• Amortization
• Break-even analysis
• Cash flow analysis (including MIRR and FMRR)
• Internal rate of return
• Net present value
• Net uniform series
• Net future value
• Bond calculations (including modified duration and Macaulay duration)
• Depreciation
• Yield and accrued interest
• Interest rate conversions
• Black-Scholes option pricing

Probability and Statistics

• List-based, one- and two-variable statistics and forecasting
• Frequency statistics
• Σx, Σx2, Σy, Σy2, Σxy, average, standard deviation, population deviation, standard error
• Linear, logarithmic, base e exponential, base a exponential, inverse, and power regression
• Correlations and covariance
• Combinations, permutations, factorials (gamma function), random number generation
• Lower-tail normal distribution, Student's t distribution, Chi-square distribution, F distribution, and their inverses, and binomial distribution

Mathematics

• Standard operations (+, -, X, ÷, %, 1/x, +/-, square root)
• Advanced operations (scientific notation, common log, natural log, power, exponential, integer part, fractional part)
• Rounding
• Trigonometry (arc/sine, arc/cosine, arc/tangent, hyperbolics, pi)
• Probability (LTSD, inverse LTSD)
• Absolute value
• Rounding

HP Provided Documentation

• Financial Calculator Quick-Start Guide, provided in printed form with the calculator
• Financial Calculator User's Guide, 114 US Letter pages, provided as a separate download
• Thirty Training Modules, totaling 244 pages, provided as a separate download
• Development Kit, explaining the technical architecture for developing on the 20b/30b platform, provided as a separate download
• HP Euro Font, useful for creating your own documentation

Warranty and Support

• 1 year limited warranty in the US, provided by HP America
• Toll-free technical support in the US, at 800-HP-INVENT (800-474-6836)

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