[BITList] Fwd: Re: Human calculator. [VIDEO]

[David Harvey]

Frank,

I googled Trachtenberg System ( ibet evryone else did as well) and you call
that simple?

Bloody hell, no wonder I was never an engineer (or a lecky)

Dave

On 2 September 2011 09:22, franka <franka at iinet.net.au> wrote:

>  Hugh,
> Think he most likely was using the *The Trachtenberg System* I remember
> teaching my eldest daughter some of the algorithms for multiplication and
> addition when she was about eight, and in a very short period of time she
> was multiplying six figures by six figures in her head unfortunately I
> didn't progress with the system as I thought that it might throw her out of
> wrack at school, years later I noticed that the power coaching colleges were
> using his system during the summer semester catchup secessions
> frank
>
>
>
> John,
>
> It's baffling. It's highly impressive.  But it isn't mathematics as I know
> it. I can square 2-digit numbers in my head - on a good day, 3-digit - once
> in a blue moon, 4-digit - it all depends on whether my memory cooperates.
> Once the simple trick is learned, the rest is memory.  That isn't
> mathematics either.
>
> Hugh.
>
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