Robust?? Professional Grade scientific Calculator</br>2-Line display shows entry and calculated result at same time</br>Easily handles 1 and 2 variable statistical calculations and three angle Modes (degrees?? radians?? and Grads) and scientific and Engineering notation Modes</br>It has 1-year limited warranty</br></br>Product Description</br></br>The Texas Instruments ti-30x I is 2-line scientific calculator features two-line display and other advanced features users get with the ti-30x I is. The display shows the equation you are creating on the top line?? and the numbers or symbols you are currently entering on the second line. Once the equation is solved?? the results are displayed on the second line?? and you can use the four arrow keys on the front of the