The tutor shares a discovery about the Casio fx-260Solar.

The Casio fx-260Solar is a great calculator. Of course, it’s reverse entry for square root, sin, cos, tan, etc, so might be a little less popular with some people.

When you open a bracket with the Casio fx-260Solar, [01 might appear. This means the depth of the brackets: you’ve opened the first set. If you enter the expression

12x(6-(3-5)²)

you’ll see [02 when you open the second set of brackets. Even though you can’t see all you’ve entered, knowing which bracket the calculator thinks you’re opening can help. It keeps you aware of your place in the calculation, and reminds you that you’ll need to close two sets of brackets. I think it’s a neat feature.

HTH:)

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.