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
Casio FC-100V-2-W-ET Financial Calculator Second Edition, Black : Amazon.ae: Office Products
calculators/Casio FC-100 - calculator.org
calculadora financiera casio fc-100v d'occasion pour 25 EUR in Alboraya sur WALLAPOP