The ratio 10:14 (or rather 5:7) differs from sqrt(2) by a factor of 1.02%

Other approximations are 

.         17:12 (deviates from sqrt(2) by 0.17%

.         99:70 (deviates from sqrt(2) by 0.0051%)

 

It really depends on how accurate you want to go and the practicalities of
keeping to the required accuracy.  I do not think that in the real world it
is practical to define a flag as having sides in the ratio 99:70, though
17:12 seems OK.  

 

From: Henschel Mark [mailto:mw-hensch...@neiu.edu] 
Sent: 05 June 2013 02:19
To: vliets...@btinternet.com
Cc: U.S. Metric Association
Subject: Re: [USMA:52864] RE: Metric Flag

 

Not exactly.

Metric paper is the ratio of one to the square root of two, or one to
radical two (1:1.414...)

I suppose 7:10  would work as an approximation.

 

IF you like ratios, explore the Renard series of preferred numbers. Louis
Sokol did a lot of work on this topic and wrote some interesting papers
about Renard numbers.

 

Mark

----- Original Message -----
From: Martin Vlietstra <vliets...@btinternet.com>
Date: Tuesday, June 4, 2013 6:03 am
Subject: [USMA:52864] RE: Metric Flag
To: "U.S. Metric Association" <usma@colostate.edu>

> And a flag  ratio of 7:10 - the ratio of A4 paper?
> 
> -----Original Message-----
> From: owner-u...@colostate.edu [mailto:owner-u...@colostate.edu] 
> On Behalf
> Of Pierre Abbat
> Sent: 04 June 2013 10:31
> To: U.S. Metric Association
> Subject: [USMA:52862] RE: Metric Flag
> 
> On Tuesday, June 04, 2013 07:59:20 Martin Vlietstra wrote:
> > I know that some flags do have text - this seems to have been 
> a trends 
> > in the 19th century.  Historically the flag was an emblem 
> that was 
> > recognisable without text.
> 
> How about the quarter meridian divided into ten equal parts?
> 
> Pierre
> --
> li ze te'a ci vu'u ci bi'e te'a mu du
> li ci su'i ze te'a mu bi'e vu'u ci
> 
> 

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