How does a human calculator do it?


	How does a human calculator do it?

WizZzrd

8-4-2007 9:56 PM

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tags:

math, genius, calcaulate, savant

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/26484864-1dc7-4dcb-926e-5fbcda300ee0/BCD8115C-89BC-4EE2-9EAB-6C5968BCE7C2/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://news.bbc.co.uk/2/hi/uk_news/magazine/6913236.stm" href="http://news.bbc.co.uk/2/hi/uk_news/magazine/6913236.stm" style="font-size: 11px;">news.bbc.co.uk</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/2/hi/uk_news/magazine/6913236.stm"><P>
<FONT size="2"><B>Alexis Lemaire has broken the record for finding the 13th root of a 200-digit number. It's an incredibly hard calculation so how does the "human calculator" do it?</B>
</FONT></P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/2/hi/uk_news/magazine/6913236.stm"><FONT size="2">Fancy yourself as a bit of mental arithmetics buff, one of those who relishes totting up the bill after a restaurant meal for 12, one of those who looks down their nose at calculator users?
</FONT></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/2/hi/uk_news/magazine/6913236.stm"><P>
<FONT size="2">Well try this for size.
</FONT></P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/2/hi/uk_news/magazine/6913236.stm"><FONT size="2">The task is to find the 13th root of 85,877,066,894,718,045,
602,549,144,850,158,599,202,771,247,748,960,878,023,151,<BR />390,314,284,284,465,842,798,373,290,242,826,571,823,153,<BR />045,030,300,932,591,615,405,929,429,773,640,895,967,991,<BR />430,381,763,526,613,357,308,674,592,650,724,521,841,103,<BR />664,923,661,204,223.
</FONT></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.bbc.co.uk/2/hi/uk_news/magazine/6913236.stm"><FONT size="2">The answer's 2396232838850303. Multiply that by itself 13 times and you get the above. Even with a calculator you wouldn't beat Alexis Lemaire doing the calculation in his head. 
</FONT></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/BCD8115C-89BC-4EE2-9EAB-6C5968BCE7C2/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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