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27 January, 2012

Antony can't calculate square root.


While window shopping at Apple Store (Bondi) yesterday, I stopped at iPad section and decided to play what interesting iOS apps they got. One of the app I played was MathBoard. It seems to be interesting.

I of course play this highly educational app without cheating. I used my head or pen and paper (actually drawing on iPad) to work out the answers. My algebra (arithmetic) was not that bad, after all, unlike today's highly educated Don, I was old-schooled. No calculators in any of my math classes, only one class in high schooled allowed the use of calculator - Statistical Mathematics. Of course, there was no PDA, not light-weight and easy-to-search digital books, no internet etc. With all algebra, I was learned to either work them out with pen and paper or in my head. Today's kids (e.g. Don) is simply so damn lucky.

Anyhow, back to the topic. Simply multiplication was not that difficult, so was calculating the cubic number (e.g. 23 cube ). But then I was stuck in one quiz, working out the answer to a square root (e.g. sqrt(1024)).
To calculate 23 cube, I simply multiply 23 by 23, then multiply it again. There must be some sort of speedy calculating (or tricks if you want to call it), but being an old-schooled person, I don't know (or don't remember) any speedy methods on such calculation. You can ask Don for all those mathematics tricks.
But to work out the square root of 1024 (sqrt(1024)). I have absolutely no idea on how to work it out, apart I can tell where about the range (of numbers) is, I would have to use the super-stupid trial and error. (I know it is laughable by Don's high intelligence.)

Okay, the answer for this particular question is a nice round number 32. But what about an arbitrary number? (Without punching a calculator of course.)

By the look and the feeling of this MathBoard, it seems to be targeting primary school students. Addition (+), subtraction (-), multiplication (x) and division (/) are all fine, but asking primary school students to do square roots ()?

Obviously, my last century's non-American educated learning is clearly no match to Don's modern day high education at reputable Rochester Institute of Technology.

MathBoard - palawareMathBoard is available from iTunes App Store.

Posted by Antony on 27 January 2012 9:39 AM |

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