Texas Instruments TI-1795 SV Standard Function Calculator Angled SuperView display for easy viewing | Solar and Battery powered to work anywhere | Change sign (+/-) key simplifies entry of negative numbers | Easy keyboard operation | Change sign (+ / -) key | Square root key | Solar and battery powered | Angled display The classic mini-desktop calculator for home office or retail with big keys and a giant SuperView display. Key Features: Well-spaced keyboard with large contoured keys for easy operation Change sign (+/-) key simplifies entry of negative numbers Square root key is useful for schoolwork Solar and battery powered to work anywhere Angled display for easy viewing