| A calculator is an electronic device that performs | | | | computers through a USB cable. |
| mathematical calculations. It can be a software or | | | | 3. This 3.2.6 Calculator software is a useful device and |
| hardware, electronic or mechanical. It can also be a | | | | handy replacement for the standard window calculator. |
| built-in feature in devices like mobile phone or PDA. | | | | It has many additional features that are nary of a |
| Calculators can run on batteries or a solar panel. | | | | standard calculator. |
| Electronic calculators nowadays are commonly digital, | | | | 3.2.6 calculator has a skin interface that a user can |
| pocket-sized, portable and generally inexpensive. | | | | change at his whim. Other programs like WinAmp only |
| Scientific calculators are useful in advanced math like | | | | have one interface. |
| statistics, trigonometry, and other mathematical | | | | 4. The PG calculator is a scientific multifunction |
| functions. Many students use this in studying technical | | | | calculator that functions in three working modes - |
| math, calculus, and trigonometry. | | | | standard, RPN and algebraic modes. The skin interface |
| This gadget has a cancel entry button that erases a | | | | is changeable. It runs on battery. |
| wrong number entered. Advanced modern calculators | | | | Popular and Recommended Models: |
| display graphics and include features of computer | | | | 1. Casio FX-115w |
| algebra systems. | | | | This 115-watt calculator contains a multiple memory |
| Other basic functions of scientific calculators include:o | | | | function, two-line display and a 279 preset function that |
| Decimal pointo Square rooto Significant digit selection | | | | is ideal engineering and other technical studies. It has an |
| Different Kinds of Scientific Calculator | | | | easy switch mode and metric conversions. It runs on |
| 1. Curta are little and hand-cranked electrical calculators. | | | | battery. |
| It is compact, just like the palm of your hand. It can | | | | 2. Casio FX-260 |
| perform the basic mathematical functions like addition, | | | | It features a two-line display. One is for the equation, |
| subtraction, multiplication, division, and square roots. | | | | and the other for the answer. The device is easy to |
| The design of Curta descended from Thomas | | | | navigate. It is powered by a solar panel. |
| Airthmometer and Gottfired Liebiniz Stepped | | | | 3. TI 30xa |
| Reckoner. | | | | This model is perfect for students. It is small that it fits |
| 2. The HP 39gs is the perfect graphing tool that has a | | | | the pocket. It is relatively inexpensive and durable. It is |
| large adjustable contrast split screen with symbolic | | | | powered by batteries. |
| graphing and numeric views. It is ideal for science and | | | | 4. TI 30x IIS |
| math students. It allows existing works to be saved | | | | This is more sophisticated than TI 30xa. It has a |
| because of the 256kb memory capacity. Keys are | | | | two-line display, and internal memory. Customize |
| easy to read and menus are user-friendly. | | | | settings in the menu. It is also powered by batteries. |
| The HP 39gs calculator can connect to personal | | | | |