As time passes, technology progresses and can often become more complicated. Sometimes a person just wants a simple piece of technology to use when making calculations at home, school, or work. That is where the TI-30 scientific calculator steps in. This vintage piece features a red bubble lens that displays up to eight digits at a time. With its ability to perform 17 scientific functions, the TI-30 is ideal for the classroom and engineers who need a helping hand. Furthermore, because this Texas Instruments piece runs on a 9V battery, it is easy to keep it in tip-top shape and ready for everyday use. This item also runs on solar power.When shopping for a scientific calculator, one should consider how long it can be used for. The TI-30Xa calculator from Texas Instruments has a long-lasting useful life, which benefits students and workers who need calculators that will be around for the long haul. When it comes to the time that you must replace the battery, just remove the back of the item with a screwdriver and change it. The memory is another aspect that one should look at when buying these items. The long-lasting memory of its information will stay intact in the display, even when the scientific calculator is shut off. Many people may never need to do calculations more complicated than addition, subtraction, multiplication, and division. But for those who need their calculators to do more than basic math problems, the TI-30Xa can meet their need for complex math calculations. It can perform trigonometric functions in both degrees and radians. This item can also convert fractions to decimals and vice versa. The TI-30 can work as a great tool for students, teachers, workers, and anyone else who needs a hardworking calculator. This product's fraction feature allows one to enter an operation with both a mixed number and fractions. It can display natural logarithms, reciprocals, and universal powers and roots. This item can also convert complex numbers from the rectangular form to polar form and vice versa. Other functions that this electronics item can perform include conversions of degrees to decimals and vice versa, factorials, hyperbolics, and grads. This product's statistics feature lets you enter, delete, and enter again different data elements. This hardworking product needs protection from the slings and arrows of ordinary and even extraordinary wear and tear. No one wants to go the store to replace this item after breaking the screen in an accident. Nor do you want to go without this important product after accidentally damaging a key. That's why this piece of electronics from Texas Instruments comes with a hard cover that slips over the front of the product. The slipcover allows you to stash the product in a backpack, purse, desk, or briefcase without any serious risk of damage. Another factor that contributes to the product's portability is its size. At 6.1 inches long and 3.2 inches wide, it won't be hard to carry it from place to place. The product weighs approximately 4.8 ounces.