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
מחשבון פיננסי CASIO
CASIO FC-100V Financial Calaulators - 商業文儀包裝有限公司
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Abacus Calculators | Casio FC100V
Eddie's Math and Calculator Blog: Retro Review: Casio FC-100 Financial Calculator