File:Flag of the United States specification.svg

此SVG文件的PNG预览的大小：800 × 469像素。其他分辨率：320 × 188像素 | 640 × 375像素 | 1,024 × 600像素 | 1,280 × 750像素 | 2,560 × 1,501像素 | 1,535 × 900像素。

原始文件 ‎（SVG文件，尺寸为1,535 × 900像素，文件大小：9 KB）

本文件并非来自中文维基百科，而是来自维基共享资源。请参阅维基共享资源上的详细描述、讨论页、页面历史、日志。

维基共享资源是一个储存自由版权作品的项目。您可以向此项目作出贡献。

旗幟以人类可编辑的纯文本格式保存。任何图像的编辑或衍生作品的创建都应使用文本编辑器进行。请不要上传以Inkscape或类似的矢量图形编辑器，以及诸如SVG翻译器等自动化工具保存或导出的编辑。

polen41960 uas

摘要

描述	English: A similar diagram of the flag of the United States was given in Executive Order 10834, by Dwight D. Eisenhower, on August 21, 1959. It appears in the United States Code, title 4, chapter 1 [1]. The code specifies the lengths as See "Flag of the United States" article for details. The exact values are given in parenthesis, see graphics above, for the modern US flag with 50 stars. Older flags do not get adjusted for any reason. A = 1.000 = (1/1) B = 1.910 = (B/A = 1.910 fixed) C = 0.53846 = (7/13) D = 0.7615 = (Csqrt(2) = 7sqrt(2)/13) E = F = 0.053846 = (C/10 = 7/130) G = H = 0.06346 = (D/12 = 7sqrt(2)/(1213)) K = 0.061803 = (inv(5x(sqrt(5)+1)) L = 0.07692 = (1/13) How is this obtained or calculated? See below: Let, A = 1 A = 13L L = 1/13 = 0.076923... C = 7L = 7/13 = 0.5384615... D = 0.76 (From "Flag of the United States" wiki article: B x 2/5 which is correct only for this AR of the flag, in fact, D/C looks to be about sqrt (2) and if so, then D = 7xsqrt(2)/13 = 0.7614996... ) Given: E = F, then E = F = C/10 = 7/130 = 0.05384615... Given: G = H, then G = H = D/12 = 7xsqrt(2)/156 = 0.0634583... K = 0.0616 (From "Flag of the United States" wiki article: L x 4/5 = 4/65) = 0.06153846... which contradicts what was given. The correct value for K is inv(5x(sqrt(5)+1)) = 0.061803398874... if we work this number backward we will get K = L x 4.017220926874.../5) and somebody rounded it off or over simplified it, there is where the confusion came from. The aspect ratio, B/A, is independent of all other parameters and is stated as 1.9, but its rounded off from 1.91 (see the main "Flag of the United States" text for the 0.01 rounding error.) B = 1.910 Just in case you wanted to make your own flag and all these numbers look too complicated, Here is something simple: US Letter paper size is 8.5x11. Fold 1/2 inch to get 10.5 inches. Thats your "B" and you can get one flag out of a paper: A = 5.5 inch (this is your height of the flag) B = 10.5 inch L = 27/64 inch (height of each stripe) C = 2 15/16 inches or 7 stripes D = 4 3/16 inch E = F = 19/64 inch G = H = 11/32 inch K = 11/32 inch Alternatively, fold 1/2 inch on the other side so you get 8 inches on one side. Thats your "B," and you can get two flags out of a paper: A = 4 3/16 inch (this is your height of the flag) B = 8.0 inch L = 5/16 inch (height of each stripe) C = 2 1/4 inches or 7 stripes D = 3 3/16 inch E = F = 7/32 inch G = H = 1/4 inch K = 1/4 inch
日期	2016年
来源	自己的作品
作者	Jay Bala
SVG开发 InfoField	该SVG的源代码为有效代码. 本旗幟使用未知SVG工具创作。

polen uas 1222

许可协议

	此作品在美国属于公有领域，因为其是由美国政府的官员或雇员，基于其个人公务目的制作的作品，参考美国法典第17篇第1章第105条。注意︰本模板仅适用于美国联邦政府的原创作品，不适用于任何美国州、属地、联邦个体、县、市或任何次级政府的作品。本模板也不适用于1978年以后由美国邮政署出版的邮票图案（参看美国版权局实践纲领第313.6(C)(1)条）。也不适用于部分美国硬币；参看美国铸币局使用条款。
本文件已被确认为免除已知的著作权法限制（包括所有相关权利）。

PDMCreative Commons Public Domain Mark 1.0falsefalse

文件历史

点击某个日期/时间查看对应时刻的文件。

	日期/时间	大小	用户	备注
当前	2018年6月18日 (一) 15:07	1,535 × 900（9 KB）	Χ	transparency
	2016年12月4日 (日) 14:05	1,700 × 980（4 KB）	Antonsusi	less light for better reading
	2016年4月4日 (一) 05:44	1,020 × 588（4 KB）	User000name	`<?xml version="1.0" encoding="UTF-8" standalone="no"?>` diff: yes -> no
	2016年4月4日 (一) 05:41	1,020 × 588（4 KB）	User000name	again
	2016年4月4日 (一) 05:39	1,020 × 588（4 KB）	User000name	removed spaces from id=""
	2006年3月30日 (四) 15:15	1,020 × 588（4 KB）	Pumbaa80	minor change to make labels display correctly
	2006年3月30日 (四) 15:09	1,020 × 588（4 KB）	Pumbaa80	A similar diagram of the flag of the United States was given in Executive Order 10834, by Dwight D. Eisenhower, on August 21, 1959. It appears in the United States Code, title 4, chapter 1 [http://assembler.law.cornell.edu