Calculator. The 2-line display shows the calculation and the result at a glance. Large buttons for comfortable use. Operates on solar power and batteries. Memory: 3 keys. The Texas Instruments calculator TI-106II will be a great help to you both in your profession and in everyday life. You can use it with batteries or in solar mode, ensuring you always have a calculator at hand. The calculator features an extra-large 2-line display, allowing you to see both the calculation and the result at a glance. It operates according to the standard order of operations, and with the large colored buttons, you can easily navigate even in low light. The minus sign always appears to the left of the displayed number. The digits are extra large, and there is always a separation between all three digits.