Great Calculator

Great Calculator is an app that used on mobile phone to solve all kinds of digital problems. It is useful both to business man and students. For business man, they can use it to calculate large digital numbers about salary, deal's money and finical budget and the balance of company. For students, it not only can do the basic calculate(plus, minus multiply and excepts),but also can do Index and other equations. That is to say it can help high middle school and primary school's courses.

The special function is the free app can offer you a image about the equations. With this function, you can understanding the problem better and business trend will become more clearly .

Functions:
sin, asin
cos, acos
tan, atan
log
2^x, x^y, e^x
1/x, sqrt
making plot,etc

An calculator is a small, portable, usually i not expensive electronic device that used to perform the basic operations of arithmetic. Modern calculators are more portable than that on computers, though most PDAs are comparable to handheld calculators.

The first solid state electronic calculator was created in the 1960s, building on the history of tools such as the abacus, developed at about 2000 BC; and the mechanical calculator that developed in the 17th century. It was developed in parallel with the analog computers of the day.

In the 1970s, pocket-sized devices became available , especially after the invention of the microprocessor developed serendipitously by Intel for a Busicom calculator.

Modern electronic calculators vary from cheap, give-away, credit-card sized models to sturdy desktop models with built-in printers. They become popular in the middle of 1970s as integrated circuits made their size and cost small. By the end of that decade, calculator prices have had reduced to a point where a basic calculator was affordable to most and they became very common in schools.

Computer operating system as far back as early Unix has included interactive calculator programs such as dc and hoc, and calculator functions are included in almost all PDA-type devices (save a few dedicated address book and dictionary devices).

In addition to general purpose calculators, there are those designed for specific markets; for example, there are scientific calculators which include trigonometric and statistical calculations. even some calculators have the ability to do computer algebra. Graphing calculators can be used to graph functions defined on the real line, or higher dimensional Euclidean space.

Latest version: 1.0 ()