The ways of doing everything have been evolved with the technology advancement. Now computer have become the necessity in our lives. They are part of many small and large things that we use daily but do not realize their computerized side. One of the computerized equipment, which is present in bag of almost every student, is a calculator. Although calculators have endless uses in various fields but they are mostly associated with mathematics. Calculators are of many types. The simplest one can do basic calculations but the students of higher classes prefer the scientific calculators. Usually the teachers are against the excessive use of calculators as they think that the students should learn to believe more on their own minds but still there come many situations in which a question cannot be continued without a calculator.

The most sophisticated and advanced type of calculating devices is a graphing calculator and virtual TI-83 calculator online emulator. A graphing calculator is able to plot full sized graphs and display them on the LCD and also solve the most complex equations of statistics and mathematics. Just like the graph coordinates are drawn on paper, they can also be drawn on the large display of graphing calculator. They can handle lengthy formulas easily and can write fractions in multiple lines which were not possible with traditional calculators. This enables the matrices to get inserted in more than one line.

The Zilog 80 microprocessors used in these calculators are most advanced and complex computerized chips built so far which helps in providing accurate results in a snap. Factions and equations are shown in original state due to Natural Math Display. A feature of famous mathematical software Mathematica and MATLAB known and Computer Algebra System (CAS) is also included in them. The shape of graph can be 2D or 3D depending on the model you purchase. A best graphing calculator has all these plus many other features in it.

These calculators can also be used as mini-computers due to their memory storage in which data, graphs, notes and formulas can be stored for future reference. You can recall long formulas and do not have to type them again and again. The calculator is highly customizable and you can add your own formulas from other subjects. It makes this useful in other classes too. The graphing calculator is not only popular among high school students but different professionals and statisticians also use them extensively.

Many calculator manufacturing companies are producing this calculator and most famous of them are HP, Casio and Texas Instruments. Different models with different prices and functionalities can be found in the market. These are very expensive devices and cannot be bought again and again so you should first decide which calculator suits best to your requirements. There are many online emulators available on the internet from the manufacturers like a virtual TI-83 calculator online emulator. Companies use them as a trial product for the promotion and you can use these before you finalize your decision to buy a graphing calculator.