The Texas Instruments TI-30IIXS is widely used for math and science subjects thanks to its many functions. The calculator features a 2-line display, suitable for 10 digits, and contains general math and science functions. Think of fraction calculations, technical and scientific notations and trigonometric calculations. This calculator also has the ability to edit, cut and paste data. In addition to batteries, this scientific calculator is also equipped with solar cells, so you can use it anywhere.