The tutor shares another convenient feature of the Casio fx-260solar. In high school math, you might have to convert between degrees and rads. It’s easy with the Casio fx-260solar; here’s how: Example 1 Convert 60 degrees to rads. Solution: Let’s …

Calculator usage: deg to rad, rad to deg conversion on the Casio fx-260solar Read more »

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The tutor covers a topic he’s surprised to have missed: using the memory of the Casio fx-260solar. I always have a Casio fx-260solar around. It’s economical and reverse-entry, similar to the calculators I grew up with. However, I’ve never used …

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The tutor explains his recent understanding of a function he’s wondered about. I’ve noticed the ENG function on more than one calculator, but have never used it. I’ve always assumed it means “engineering”; since I’m not one, it makes sense …

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The tutor shows a convenient way to estimate the standard deviation. Let’s imagine the following list of 20 test scores: 43, 44, 49, 51, 52, 55, 57, 58, 61, 64, 68, 73, 74, 76, 77, 82, 84, 85, 87, 91 …

Statistics: standard deviation shortcut using frequencies Read more »

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The tutor points out a surprise that dogged him, for a couple of minutes, with the Casio fx-260solar. For physics or chemistry calculations, scientific notation is handy.  Let’s imagine you want to know what 0.8c is, in metres per second. …

Calculator hints: changing modes on the Casio fx-260solar Read more »

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