This Texas Instruments TI-30X IIS Calculator is a powerful and reliable tool for all your mathematical needs. With its regular sized LCD display and backlight, you can easily read and solve even the most complex equations. This calculator is perfect for both basic and scientific calculations, and its programmable features allow you to customize your calculations to suit your needs. The TI-30XIIS Calculator is handheld and can be powered by either solar or battery power. It is manufactured by Texas Instruments, a trusted brand known for producing high-quality calculators. This calculator is ideal for use in various industries, including office, business, and industrial settings.