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Perhaps the HP-42S was to be released as a replacement for the aging HP-41 series as it is designed to be compatible with all programs written for the HP-41. Since it lacked expandability, and lacked any real I/O ability, both key features of the HP-41 series, it was marketed as an HP-15C replacement.
A graphing calculator is a class of hand-held calculator that is capable of plotting graphs and solving complex functions. While there are several companies that manufacture models of graphing calculators, Hewlett-Packard is a major manufacturer. The following table compares general and technical information for Hewlett-Packard graphing ...
HP-35 calculators were carried on the Skylab 3 and Skylab 4 flights, between July 1973 and February 1974. [ 6 ] Is the first pocket calculator with a numeric range that covered 200 decades (more precise 199, ±10 ±99 ).
The 10C was a basic scientific programmable calculator. While a useful general purpose RPN calculator, the HP-11C offered twice as much for only a slight increase in price. Designed to be an introductory calculator, it was still costly compared to the competition, and many looking at an HP would just step up to the better HP-11C.
Texas Instruments BA II Plus Professional. The BA II Plus is the main financial calculator sold by Texas Instruments as of 2015. It provides basic scientific calculator functionality alongside its financial functions, and provides most of its financial functions in the form of worksheets, where values are input as variables in a table; when a computation is requested, the calculator plugs the ...
The TI-82 was redesigned twice, first in 1999 and again in 2001. The 1999 redesign introduced a design very similar to the TI-73, TI-83 Plus, and the TI-89.It introduced a more contoured body and eliminated the sloped screen that has been common on TI graphing calculators since the TI-81.
SR-50 (1974) Printed circuit board. Data code 035: 3rd week 1975. The SR-50 was Texas Instruments' first scientific pocket calculator with trigonometric and logarithm functions. . It enhanced their earlier SR-10 and SR-11 calculators, introduced in 1973, which had featured scientific notation, squares, square root, and reciprocals, but had no trig or log functions, and lacked other featur
The TI-68 was a scientific pocket/desktop calculator produced by Texas Instruments. [1] It was introduced in 1989 and was modified in 1991 to produce a less expensive and possibly more durable version. The adjacent picture is the later version. It was discontinued in 1997. A wealth of features made it a versatile calculator.