Where is the square root button on this Casio FC 100V? The button which looks like a square root button (currently on the screen) doesn't give the square root so I have
calculators/Casio FC-100 - calculator.org
How to use Casio FC100V to solve monthly payment - YouTube
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Abacus Calculators | Casio FC100V
Casio FC 200V FC200V 100V Financial Calculator - 14 Digits, Dual Power, New 79767167004 | eBay
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Casio FC 200V FC200V 100V Financial Calculator - 14 Digits, Dual Power, New NIB 79767167004 | eBay