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If you have a syntax error on a Casio fx-85GT Plus calculator, you can press the or key which will give you the location of the error and you can then correct it.
In the Casio Scientific Calculator, it is possible to program in favorite formulas. The instruction manual has a step by step explanation. In short, a soft key can be accessed through function save. After inputting the formula, again go to function, select a letter for identification, and then save to retain the formula.
Press the S<=>D key, above the DEL key.
it's above the no 7 along with the STO button as a shift activated key
On the Casio fx-115ES calculator, the infinity symbol (∞) is located above the division symbol (/) on the same key. To access the infinity symbol, you would press the "Shift" key followed by the division key. This key combination will allow you to input or calculate values involving infinity on the calculator.