![]() Of these machines, the HP-12C is still in production the HP-15C remains one of the most sought after scientific calculator to date, and the HP-16C remains a favorite calculator for programmers. The first LCD product line from Hewlett-Packard contains some of the most successful, most popular calculators ever built. Trigonometrics, Exponentials, Linear regression, Solver, Integration, Continuous memoryįully-merged keystroke entry (99 program steps)Įxponentials, Linear regression, Financial, Continuous memoryĮxponentials, Linear regression, Financial įully-merged keystroke entry (210 program steps) #Hp rpn scientific calculator 42s seriesThe Spice series also featured the first business-oriented programmable machines, as well as HP's most sophisticated scientific calculator to date, the HP-34C. This led to numerous reliability complaints, so eventually HP returned to a more traditional design. Initially, the calculators' components were held together by pressure electronic components were not soldered onto the machines' flexible circuit boards. The third, and last, LED series of calculators from HP were plagued by a different problem. Trigonometrics, Exponentials, Continuous memory Trigonometrics, Exponentials, Continuous memory, Printerįully-merged keystroke entry (49 program steps) įully-merged keystroke entry (98 program steps) The design of the charging circuit also made it possible for the calculator to receive excessive voltage when a battery pack was not properly inserted, causing the calculator's sensitive MOS circuits to fail. Unfortunately, the construction of the calculators provided for the uneven heating of the batteries during charging, leading to premature battery wear. HP's second pocket product line featured several machines in a very small, pleasant form factor. Trigonometrics, Exponentials, Printer, Magnetic cards Trigonometrics, Exponentials, Linear regression, Continuous memory, Printer Trigonometrics, Exponentials, Magnetic cardsįully-merged keystroke entry (224 program steps)Ĭonditionals, Branching, Subroutines, Labels, Indirect addressingįully-merged keystroke entry (200 program steps) Partially merged keystroke (100 program steps)Ĭonditionals, Branching, Subroutines, Labels Trigonometrics, Exponentials, Real-time clock The appearance of the HP-67 places it in the Classic series, however. Strictly speaking, the HP-67/97/97S actually belong to the second generation: electronically, these machines use the technology of the "Woodstock" series. HP's first product line of pocket/portable calculators. Perhaps it's no wonder that the programming model changed little over the years its mature version, first introduced with the HP-67, remained largely the same over the years and was still used in HP's last series of RPN keystroke programmables, the Voyager series. In addition to all the programming advantages offered by the RPN system, it also offered conditional and unconditional branching, labels, subroutines, and a partially merged instruction set. The first pocket programmable calculator ever made, Hewlett-Packard's HP-65, already had a very sophisticated programming model. My first HP-65, for instance, has not yet had a single faulty read or write operation ever since I fixed its reader in the summer of 1999! The Keystroke Product Line HP magnetic card readers are a constant source of amazement for me: after their disintegrating transport wheels are repaired, they work like new even after 25 years. HP calculators are characterized by a very solid physical feel, robust design, great calculation accuracy, and reliable engineering solutions. HP is also one of the few survivors of the "calculator wars" of the 1970s, remaining one of the preeminent calculator manufacturers in 1999. ![]() HP can claim many of the firsts in this industry, including the first "shirt-pocket" scientific calculator (HP-35), the first pocket programmable calculator (the HP-65), the first pocket calculator with alphanumeric capability (the HP-41) and more. finding and testing of prime numbers.To most calculator owners, the name Hewlett-Packard is synonymous with the highest quality in handheld calculating devices. Long integer calculations for up to 1000 digits, incl.Real and complex computations with 34-digits precision.More than 50 physical constants (reflecting CODATA 2018).to and from dB, light years, parsecs, barrels, carat, quarts) More than 100 conversions provided (e.g.Vector and matrix algebra, solves systems of linear equations, computes eigenvalues and eigenvectors.Numeric integration and derivation, automatic sums and products.Built in Solver for finding the roots for any variable in an arbitrary equation. ![]() The most ample set of probability distributions and sample statistics analysis functions.The most ample set of scientific functions from roots, exponentials, logs, and trigonometry to Beta, Gamma, Zeta, Bessel, and Chebishev, Hermite, Laguerre, Legendre polynomials. ![]()
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