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
Eddie's Math and Calculator Blog: Retro Review: Casio FC-100 Financial Calculator
Casio FC 200V FC200V 100V Financial Calculator - 14 Digits, Dual Power, New 79767167004 | eBay
Flipkart.com | CASIO FC 100V FC 100V Financial Calculator - Financial
Casio FC 200V FC200V 100V Financial Calculator - 14 Digits, Dual Power, New NIB 79767167004 | eBay