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.

TI-55. An advanced slide rule calculator with statistical functions and simple programmability. Science. Engineering. Statistics. Social Science. Whatever your field. Packed with the features and functions to handle almost any mathematical operation, from logarithms and trigonometry to more advanced statistical problems.

ti-55-ii Advanced LCD slide rule calculations with programming and statistics. With 112 powerful functions for professional engineering, science, and math applications.

Texas Instrument's model 55 scientific calculator has a memory capacity of 10, a red display of 12 LEDs, and a 40-key display. It uses two nickel-cadmium AA size batteries to operate.

View and Download Texas Instruments TI-55 owner's manual online. Advanced Professional Calculator. TI-55 calculator pdf manual download. Also for: Ti-51-ii, Ti-51-iii.

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2019年1月21日 · The TI-55 was my transition scientific calculator from my TI-30 in junior high school (1977-1979). Used it and the upgrade to the LCD version TI-55 II with much longer battery life throughout high school.