Texas Instruments TI-30XIIS Scientific Calculator, Black with Blue Accents

Features 2 line display & other advanced features. Display shows the equation you are creating on the top line & #s/ symbols currently entering on the second line. Once equation is solved, the results are displayed on the 2nd line & you can use the 4 arrow keys on the front of calculator to edit the original equation for a recalculation. Better still, pressing the up arrow repeatedly lets you browse through a cache of dozens of previous calculations, you can look back to see the answer to a problem. Device uses solar power when possible & can fall back on the internal batteries (which are included) if there isn't enough light. 3 angle modes (degrees, radians, and grads), scientific & engineering notation modes. 5 variables can also be assigned to their own memory slots. Comes with Snap-On cover that fits on the back of device. Key Features: •2-line display •Fraction features •Conversions •Basic scientific and trigonometric functions •Edit, cut, & paste entries •Solar and battery powered. 1- and 2-variable statistics Ideal For: •General math •Pre-Algebra •Algebra 1 and 2 •Geometry •Statistics •General science Features & details Robust professional grade scientific calculator. Logs and antilogs 2-line display shows entry & calculated result at same time 1 & 2 variable statistical calculations & 3 angle modes (degrees, radians, and grads) & scientific & engineering Falsetation modes Dimensions ‎6.1 x 3.2 x 0.74 inches Item model # 7420-01-478-7048 Batteries 1 CR123A included