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The following table compares general and technical information for a selection of common and uncommon Texas Instruments graphing calculators. Many of the calculators in this list have region-specific models that are not individually listed here, such as the TI-84 Plus CE-T, a TI-84 Plus CE designed for non-French European markets.
TI-55 II Calculator, the second variant, with an LCD display. The TI-55 is a programmable calculator first manufactured by Texas Instruments in 1977. It has an LED display, [1] and weighs 6.4 ounces (180 grams). It is programmable to hold up to 32 key-codes that allow the user to repeat simple calculations with different values. [2]
The calculator can evaluate and simplify algebraic expressions symbolically. For example, entering x^2-4x+4 returns x 2 − 4 x + 4 {\displaystyle x^{2}-4x+4} . The answer is " prettyprinted " by default; that is, displayed as it would be written by hand (e.g. the aforementioned x 2 − 4 x + 4 {\displaystyle x^{2}-4x+4} rather than x^2-4x+4 ).
23 Texas Instrument TI-84 Plus CE calculators. Two Texas Instrument TI-84 Plus calculators. One Texas Instrument TI-Nspire CX 2 calculator. The man was held on local charges, but has warrants out ...
Designed in 1992 as TI's second graphing calculator (the first was the TI-81), it was replaced by the TI-86, which has also been discontinued. The TI-85 was significantly more powerful than the TI-81 , as it was designed as a calculator primarily for use in engineering and calculus courses.
The TI-81 was the first graphing calculator made by Texas Instruments.It was designed in 1990 for use in algebra and precalculus courses. Since its release, it has been superseded by a series of newer calculators: the TI-85, TI-82, TI-83, TI-86, TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, TI-84 Plus Silver Edition, TI-84 Plus C Silver Edition, TI-Nspire, TI-Nspire CAS, TI-84 Plus CE ...
The calculator was code-named Wizard, [4] which is the first known use of a code name for a calculator. It also contained an Easter egg that allowed users to access a not-especially accurate stopwatch mode. [5] [6] An accurate version of the stopwatch mode was officially featured in the 1975 successor of the HP-45, the HP-55.
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