![Casio Classwiz - Using a stored value of x in an equation (Calculator, fx-991ex, A level Maths) - YouTube Casio Classwiz - Using a stored value of x in an equation (Calculator, fx-991ex, A level Maths) - YouTube](https://i.ytimg.com/vi/57oLudqDmvU/maxresdefault.jpg)
Casio Classwiz - Using a stored value of x in an equation (Calculator, fx-991ex, A level Maths) - YouTube
After solving a equation with one unknown on 'Calc' mode in Casio fx 991ex (using shift+calc), the equation that just have been entered disappears after doing another calculation. Is there any way
![Solve A Quadratic Equation Using The Classwiz Polynomial Solver- Casio fx-991EX fx-570EX Calculator - YouTube Solve A Quadratic Equation Using The Classwiz Polynomial Solver- Casio fx-991EX fx-570EX Calculator - YouTube](https://i.ytimg.com/vi/b8iO5oJuIc8/mqdefault.jpg)