# What is the most mathematical flag? [closed]

I know it sounds stupid. But my professor asked us which is the most mathematical flag. As I know most of the flags of the countries are rectangle then what does he mean by most mathematical flag?

## closed as primarily opinion-based by Najib Idrissi, mercio, Thomas, user642796Oct 10 '15 at 13:36

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• How do you define 'most mathematical'? Most different shapes? – Dennis Gulko Nov 5 '13 at 11:40
• The swiss flag, it has a $+$ prominently featured in the centre. – Daniel Fischer Nov 5 '13 at 11:40
• Israel has a star of David, which is an interesting graph; Japan has a circle which is the "mathematical perfection" so to speak. The flag of the USA can be used to count things using stars and stripes. And so on and so forth. – Asaf Karagila Nov 5 '13 at 11:44
• Was I really the only person to think of a chain of subspaces of a vector space? ;) en.wikipedia.org/wiki/Flag_(linear_algebra) – mdp Nov 22 '13 at 17:04
• @DanielFischer And since it is the only square flag it exhibits more symmetry than the others. – Wintermute Jan 10 '14 at 20:54

Watch this: http://m.youtube.com/watch?v=f2Gne3UHKHs. It explains the construction and a bit of history.

Nepal. The details of how to recreate their flag is a fully rigorous ruler and compass construction.

The Texas Flag I am developing a math (geometry) exemplar for fourth grade students using the Texas flag. !

The flag code states:

Sec. 3100.001. STATE FLAG. The state flag is the 1839 national flag of the Republic of Texas.

Sec. 3100.002. DESCRIPTION: IN GENERAL.
(a) The state flag is a rectangle that: (1) has a width to length ratio of two to three; and (2) contains: (A) one blue vertical stripe that has a width equal to one-third the length of the flag; (B) two equal horizontal stripes, the upper stripe white, the lower stripe red, each having a length equal to two-thirds the length of the flag; and (C) one white, regular five-pointed star: (i) located in the center of the blue stripe; (ii) oriented so that one point faces upward; and (iii) sized so that the diameter of a circle passing through the five points of the star is equal to three-fourths the width of the blue stripe.

You should also take a look on this: http://www.mat.usach.cl/images/Profesores/navas-papers/flag.pdf

Thanks for the discussion.

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• Nice article cited. However, you should also include a brief synopsis – Shailesh Oct 10 '15 at 12:35