Features a large, 4-line display Great for advanced algebra, trigonometry, computer science and statistics. Features 1- and 2-variable statistics, including linear regression and trendline analysis. 3 memories let you store intermediate results. Includes constants and conversions for science and engineering. Includes 8 physical constants and 10 English/metric conversion functions. Slide-on cover is included. Texas Instruments(R) TI-36X Pro Scientific Calculator is one of many Scientific Calculators available through Office Depot. Made by Texas Instruments.