Ever try to do a quick bit of math on your iPad when it was fresh out of the box? What’s up with that, Apple? Where’s the app that comes with every iPhone and iPod touch, the calculator? Well, today, we’ll point you in the direction of a good free one, so you can add the functionality that should have been on your iPad to begin with.
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Ever wonder how those funky aperture numbers ended up on your lens barrel? Or who chose those odd ƒ-numbers that run in the seemingly arbitrary 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32 sequence? And why does the biggest number refer to the smallest lens-hole?
Now, video sketching supremo Dylan Bennett is back to explain ƒ-stops to you. Grab a beverage, sit back and enjoy 15 minutes of easy-to-follow explanation. With drawings!
There’s no need to break-out the calculator (either real or software) when you want to do a quick calculation. Just use Spotlight, as follows.
As iPad use continues to grow, assessing how we use them becomes an important topic of study. This includes what kinds of tasks we use the tablet for, and ergonomic issues related to using the device.
Boston University is launching a study this fall among children of military members in an effort to help improve their math skills and teach healthy computing. They are currently looking for additional iPads to help in their efforts.