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The data format used by the stop-watch consisted of a combination of units (Hours, Minutes and Seconds), but the HP-55 featured a special conversion function to convert between this format and a pure unit (Hours). Because of this, data from the stop-watch could easily be used right away in calculations.
MyCalcDB HP calculators list. Calc Pages Articles and programs for classic HP calculators; Programmable Calculators Pictures, specifications, and details for most HP calculator; The HPDATAbase, a collection of data about all HP calculators; wiki4hp. Community driven wiki about HP calculators and related resources. Kahan, William (2020-11-16).
The last modification date stamp (and with DELWATCH 2.0+ also the file deletion date stamp, and since DOS 7.0+ optionally also the last access date stamp and creation date stamp), are stored in the directory entry with the year represented as an unsigned seven bit number (0–127), relative to 1980, and thereby unable to indicate any dates in ...
HP-19B, introduced on 4 January 1988, along with the HP-17B, HP-27S and the HP-28S, and replaced by the HP-19BII (F1639A) in January 1990, [2] was a simplified Hewlett Packard business model calculator, like the 17B. It had a clamshell design, like the HP-18C, HP-28C and 28S. [3]
The HP-65 introduced the "tall", trapezoid-shaped keys that would become iconic for many generations of HP calculators. Each of the keys had up to four functions. In addition to the "normal function" printed on the key's face, a "gold" function printed on the case above the key and a "blue" function printed on the slanted front surface of the ...
Like many other vintage HP calculators, the HP-16C is now highly sought-after by collectors. [14] In July 2023, the HP Development Company, L.P.'s licensees Moravia Consulting spol. s r.o. and Royal Consumer Information Products, Inc. introduced the HP-15C Collector's Edition, which comes with an undocumented mode to emulate the HP-16C as well ...
Additionally the HP 40g does not have infrared connectivity, and is limited to 27 variables. A list-based solver, and other handicaps make this simple-to-use calculator less adapted to higher end use. The HP 40g is not allowed for use in many standardized tests including the ACT. It is allowed on the SAT as of 2019, however. [1]
The HP 35s (F2215A) is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific calculator).