
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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May 5th, 2014, 11:40 AM  #11  
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Quote:
Quote:
Neusis construction  Wikipedia, the free encyclopedia I believe a marked ruler gives you exactly the power of origami constructions (HuzitaHatori).  
May 5th, 2014, 01:42 PM  #12 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,636 Thanks: 2621 Math Focus: Mainly analysis and algebra 
The second point was that if you have a marked ruler it doesn't matter whether it is marked in centimetres, inches, planck lengths or some made up units. All are equally powerful.

May 6th, 2014, 05:00 AM  #13 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  

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impossible, impossile, task 
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