Texas Instruments TI-30XIIS Scientific Calculator

2-line scientific calculator with advanced features. No.1 brand used by students. Easily scroll, review and edit current or previous entries. Perform a variety of conversions and advanced calculations. See both equation and answer. Solar and battery powered. Built to last. Slide on case included. Appropriate for: General Math, Pre-Algebra, Algebra 1 & 2, Geometry, Trigonometry, Statistics, Science, and Biology.