calculators
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Difino
This is a list of types of calculators, many of which are obsolete but hoarded by legions of admiring collectors.
Many of these old devices belong in a museum [HTTP ] [HTTP ]
Source: [wikipedia: list of calculators]



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Advantix Calculator
 integrated mathematical tool that can compute mathematical expressions involving complex numbers, polynomials, rational functions, vectors, and matrices.


Americalculator
 alternative to the standard windows calculator, save calculation lists as text files, many other features, simple yet powerful tool no computer need be without. optional large size for easy reading.


AnalyticMath
 analyticmath is a platform independent (windows, linux, etc.) mathematics program with a powerful editor and many integrated features that will allow you to expand and/or simplify algebraic expressions quickly and easily.


Calc 3D Pro
 calculator for vectors, matrices, complex numbers, coordinates, function plotting and intersections. cartesian, spherical and cylindrical coordinates can be transformed into each other. also integrated: editor, arithmetic trainer, calendar, and help file.


CalcuNote
 arithmetic calculator, adding machine, and time calculator that records and documents calculations on multiple tapes that can be edited.


CLK-Calculator
 a calculator solution for school, high school, university and engineers. the handling is especially simple and clear. you can choose your prefered input mode algebraic or rpn. unit conversions, matrix calculations, complex numbers, vectors handling and function-plotting are done especially simple.


Expression Calculator
 performs over a hundred simple, and complex calculations, with the ability to make several calculations simultaneously. functions range from simple trigonometry, to gaussian integrals, through 2d plots. [win95/98/me/nt/2000]


GraphCalc
 a calculator to use for a variety of purposes, including the production of 2d, and 3d euclidean, and polar graphs.


Inplace Calculator
 supports all basic mathematical and scientific operations. convert currencies and measurement units. additional features include automatic currency exchange rates update, built-in support of keyboards with a special "calculator" key, highly customizable interface with support of skins and sounds.


Moffsoft Calculator
 a replacement for the existing windows calculator, features include a history tape, sizeable display, tray icon and visible memory value.


System Essentials - CalcPac
 software that emulates popular handheld calculators like the hp-12c, ti-36x and others. calcpac contain hundreds of business and financial functions that can solve the most difficult problems.


Virtual Calc
 a calculator that supports unconstrained bases and infinite precision. replaces limited calculator in windows.


mathematics:windows

Early Warning Life Expectancy Calculator
 a life expectancy calculator based on official statistics for the u.s. and scandinavia with real-time countdown, date and time of death.


Fast Financial Analysis - Life Expectancy
 this is an online version of life expectancy test developed by the foundation for infinite survival, inc.


life_expectancy:aging




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