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Calculators

A calculator is a hand-held inexpensive electronic device used to perform the operations of arithmetic. The simplest calculators can only do addition, subtraction, multiplication, and division, while scientific calculators can handle exponential operations, and trigonometric and logarithmic functions.

1,648 Questions

Calculator of mixed numbers?

http://freeonlinecalculator.net/calculators/math/mixednumbers.php Here ya go. :D

What is the square root of 125 without using a calculator?

square root of 125= 25 times 5 under the radical (25 has a square root so you can take that out of the radical)= 5 times the square root of 5 (Thats your final answer with no calculator)

Is there any games for the TI Nspire?

You can play Ti-84 games with the 84 keypad but I have yet to find games for the n-Spire CAS. So just download TI-84 games and use the 84 keypad.

In what year was the first commercial calculator available for sale?

== == The brand name was Bomar and it was in 1975 - they cost around $150 when they were first introduced

What was the very first calculator used?

The very first calculator ever used could be an abicus, an electronic calculator, or even your brain. The first calculator invented was the abacus.

Blaise Pascal Invention?

Blaise Pascal invented the Pascaline, a type of calculater that was perfected when he was 30.

Could you tell me the value what Marchant calculators model tr10fa model 8-d125843 yr 1929 and model actom yr 1929?

Not sure of the value for these models but if you find out I have a model 8-sdx calculator I would like to know valve of Thanks Bill

How an abacus and calculator the same?

Abacus and Calculator and are same to the extent that both are used for doing calculations. One learnt how to use, these can help you to do calculations really fast. - Neeraj Sharma

What did the first calculator look like?

The first calculators were abacuses, and were often constructed as a wooden frame with beads sliding on wires. Abacuses were in use centuries before the written numerals system and are still used by some merchants, fishermen and clerks in China and elsewhere.

In 1822 Charles Babbage proposed mechanical calculators; one called a difference engine, which was capable of holding and manipulating seven numbers of 31 decimal digits each; and another more advanced mechanical programmable computer called an analytical engine. None of these designs were completely built. In 1991 the London Science Museum followed Babbage's plans to build a working difference engine using the technology and materials available in the 19th century.

The Olivetti Programma 101 was introduced in late 1965; it was a stored program machine which could read and write magnetic cards and displayed results on its built-in printer. Programming allowed conditional testing and programs could also be overlayed by reading from magnetic cards. The Olivetti Programma 101 has won many industrial design awards.

The first handheld calculator was developed by Texas Instruments in 1967. It could add, multiply, subtract, and divide, and its output device was a paper tape.

The first calculator was probably the abacus; this has several balls on wires and allows the operator (with some practice) to perform arithmatic.

If you enter a number into a calculator nad then press the log x key what does the calculator display?

It displays the power to which '10' would have to be raised in order to get the number you entered. That's the definition of the 'logarithm' or 'log' of a number. Examples: Enter 100. Hit 'log x'. Display '2', because 102 = 100. Enter 1000. Hit 'log x'. Display '3', because 103 = 1000. Enter 2. Hit 'log x'. Display '0.30103', because 100.30103 = 2. Enter 0.1. Hit 'log x'. Display ' -1 ', because 10-1= (1/101) = 0.1

Domain of t squared plus 1?

If t is real then [1 to infinity) ie all real numbers from 1 to infinity, including 1 but not infinity. If t is in the complex plane then the domain of t^2+1 is also the complex plane.

Can a Texas instrument graphing calculator also be used as a scientific calculator?

A Texas Instruments graphing calculator can be used as a basic calculator, a scientific calculator and a graphing calculator.

Where is the infinity button on the Casio fx-115es calculator?

On the Casio fx-115ES calculator, the infinity symbol (∞) is located above the division symbol (/) on the same key. To access the infinity symbol, you would press the "Shift" key followed by the division key. This key combination will allow you to input or calculate values involving infinity on the calculator.

What is the license code for TI nspire?

A licence code is a code which enables you to register your TI-nspire and associated software. It can be found in the packaging the calculator came with (in the same packet as the cd)

What is a scientific calculator and what is it used for?

A Scientific calculator is a kind of calculator which is used to solve scientific, engineering and Mathematical problems. It comes loaded with commonly used functions such as logarithms, scientific notation, trigonometry, floating point, complex numbers, fractions and so on. It is used widely in solving quick mathematical problems such as trigonometry functions and some cases with physics and Chemistry.

When was the TI 2500 DataMath introduced?

1972 link here for evidence http://datamath.org/BASIC/DATAMATH/ti-2500-1.htm