scientific calculator

What is a Scientific Calculator?

Functional calculator (also called " scientific calculator") is a general term for a kind of calculators that provide basic calculations using numerical functions . It is the most commonly used type of calculator. Due to different manufacturers and models they are equipped with various calculation functions. They are often employed for general numerical calculations in the fields of science, engineering or engineering. They do not have programming, text storage or high-precision operations. They also do not have drawing capabilities.

Function calculator

Functional calculator (also known as " scientific calculator") is a general term used to describe a group of calculators which have elementary computation functions . It is the most widely used kind of calculator . Different calculation functions due to various models, manufacturers, etc. The lower level is equipped with functions for basic calculation and statistics as well as regression analysis functions, and the higher stage is equipped with mathematical calculus and numerical addition or multiplication and base conversion and bit operation, science constant, unit conversion, matrix, vector solve equation (group) and solve inequality probability distribution relationships proof and other functions. It is often used to calculate general numerical functions for engineering, science and practical engineering. It is not equipped with features like programming text storage as well as high-precision operations, and drawing.In the world, there are four major manufacturers that independently design and make calculators. CASIO, Texas Instruments, Hewlett-Packard (HP), and Sharp (sharp). The other calculators in the four are fake , and are referred to as piracy or cottage. Of these four main manufacturers Scientific scientific calculators manufactured by Casio are among the most popular. In the present there are CLASSWIZ series of Scientific calculators made by Casio have reached the top quality. The domestic flagship model is the CASIO FX-991CNX. This model has a rich Calculation function, and has an Chinese menu that is appropriate for students at high schools or colleges. They can be used for tests that don't require programming and no storage functions. In addition, Casio's fx-991ESPLUS along with Texas Instruments' TI-36XPro are well-known advanced functional calculators. In addition, there are some models suitable for Junior high-school students, like Casio's FX-82ESPLUSA, FX-82CN and other models and so on.The most basic function calculation feature of the calculator typically operated by using the keys to the left of the monitor. Because of the variety of functions, a few need to be accessed via two function keys (such as ALPHA, SHIFT 2nd, etc.). Scientific calculators on the market generally use VPAM (Visual Perfect Algebraic Method) for input. Furthermore, majority of them perform the ability to function as natural writing input, which is, putting in input according to the habits of people who write mathematical formulas in paper.Functional scientific calculators manufactured in China are required to conform to the relevant provisions in the National Standard of the People's Republic of China GB / T 4967-1995 "General Technical Conditions for Electronic Calculators" ^[1]