# More About Scientific Calculators

This article discusses the use of online scientific calculator in mathematics.
This calculator is proving to be so important that it has become a necessity for students who are taking advanced mathematics courses. This is because these calculators have been designed with the intention of simplifying and shortening lengthy mathematical calculations.

A scientific calculator is a calculator that has an algebraic notation and can simplify expressions, perform calculus operations (such as integration and differentiation) as well as compute numerical approximations to transcendental functions.
The first scientific calculators were developed in the 1960s. They were mainly mechanical or electromechanical devices with little memory capacity. The first all-electric scientific calculators were introduced in 1967, and they used vacuum tubes for logical operations and liquid crystal displays for display.
The earliest known electronic scientific calculator was the Digitron, which was built by the Dixi company in 1964. It had ten constant functions, seven different memory registers with accumulator, built-in programmable square root function and three programmable keys.

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