[link|https://support.casio.com/storage/en/manual/pdf/EN/004/fx-570_991EX_EN.pdf|According to the manual|new_window=true], page 2, you can initialize (aka reset) the calculator by ''SHIFT 9 (RESET) 3 (Initialize All) = (Yes)''
[link|https://support.casio.com/storage/en/manual/pdf/EN/004/fx-570_991EX_EN.pdf|According to the manual|new_window=true], page 2, you can initialize (aka reset) the calculator by ''SHIFT 9 (RESET) 3 (Initialize All) = (Yes)''
[link|https://support.casio.com/storage/en/manual/pdf/EN/004/fx-570_991EX_EN.pdf|According to the manual|new_window=true], page 2, you can initialize (aka reset) the calculator by ''SHIFT 9 (RESET) 3 (Initialize All) = (Yes)''