Comments for Discrete Ideas http://www.discreteideas.com Thoughts count Sun, 18 Jul 2010 21:52:24 +0000 hourly 1 http://wordpress.org/?v=3.0 Comment on Fractured Memories by The Count http://www.discreteideas.com/2010/07/fraction-memorization/comment-page-1/#comment-66 The Count Sun, 18 Jul 2010 21:52:24 +0000 http://www.discreteideas.com/?p=306#comment-66 I like it, put a star after the brackets and you've got the regular expression (betraying my programming background). We were thinking along the same lines, but your brackets are more exact since 0.16* isn't as precise as 0.1[6] I like it, put a star after the brackets and you’ve got the regular expression (betraying my programming background). We were thinking along the same lines, but your brackets are more exact since 0.16* isn’t as precise as 0.1[6]

]]> Comment on Fractured Memories by Joe http://www.discreteideas.com/2010/07/fraction-memorization/comment-page-1/#comment-65 Joe Sun, 18 Jul 2010 21:39:59 +0000 http://www.discreteideas.com/?p=306#comment-65 Instead of an overbar to signify repetition, how about something like :|| in imitation of the repeat-sign in sheet music? 1/3 = 0.3:|| 1/6 = 0.1||:6:|| 1/7 = 0.||:142857:|| A bit clunky, and the vertical line looks too much like the numeral 1. So how about just putting the repeating part in brackets the way chemists symbolize repeated parts of polymer molecules (e.g. <a>http://en.wikipedia.org/wiki/Polyvinylchloride#Preparation</a>)? 1/3 = 0.[3] 1/6 = 0.1[6] 1/7 = 0.[142857] Instead of an overbar to signify repetition, how about something like

:| |

in imitation of the repeat-sign in sheet music?

1/3 = 0.3:||

1/6 = 0.1||:6:||

1/7 = 0.||:142857:||

A bit clunky, and the vertical line looks too much like the numeral 1.

So how about just putting the repeating part in brackets the way chemists symbolize repeated parts of polymer molecules (e.g. http://en.wikipedia.org/wiki/Polyvinylchloride#Preparation)?

1/3 = 0.[3]

1/6 = 0.1[6]

1/7 = 0.[142857]

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