This Texas Instruments TI-30IIS Scientific Calculator is a powerful tool for any mathematician or scientist. With a two-line screen, this calculator allows for easy viewing of your calculations. It also features a variety of functions, including statistics and calculus, making it a versatile tool for any mathematical need.

The calculator is powered by both solar and battery sources, ensuring that it is always ready for use. It is a handheld size, making it easy to take with you on the go. With its regular key size and LCD display, this calculator is perfect for anyone who needs a reliable and efficient tool for their mathematical work.