User:08glasgow08

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Images[edit]

Gallery examples[edit]

[1]

Example 1

Examples of evolutes
The evolute of a tractrix is a catenary
The evolute of a parabola is a semicubical parabola
The evolute of a cycloid is an equal cycloid. 
The evolute of an ellipse is a stretched astroid or a Lamé curve
The evolute of an epicycloid is a smaller epicycloid. 
The evolute of an astroid is an enlarged astroid. 

Example 2

Involut cir.jpg
The involute of a circle
(in reverse, by unwinding)
The involute of a catenary, a tractrix.

Tuo river[edit]

Tuo River ( Chinese: 沱江; pinyin: Túo Jiāng) is a river in Sichuan province of China. It is one of the major tributaries of the upper Yangtze River and its length is about 655 km. Tuo river is originates from the northwest edge of Sichuan basin and runs through places like Jintang, Jianyang, Ziyang, Zizhong, Neijiang before it flows into Yangtze river at Luzhou city.

李杀网[edit]

http://xahlee.org/

Math Graphic Gallery

New Entry[edit]

Tuo River, Catalan surface, conoid, Right conoid, Wallis’s conical edge, Plücker’s conoid Luxian County Fushun County, Sichuan Hejiang County


Luxian County[edit]

Luxian County (Chinese: 泸县; pinyin: lúxìan) is a county of Sichuan Province, China. It is under the administration of Luzhou city.

History[edit]

Luxian has a history over 2100 years. The county, known anciently as Jiangyang (江阳), was bulit in 135 BC during the Han Dynasty of China.[2]

Geography[edit]

The county has a total area of 2422 km².

Population[edit]

As of 2006. the county had a population of 1,055,200.


Adjacent Counties[edit]

Transport[edit]

External links[edit]

Luxian Government website

Fushun County, Sichuan[edit]

Fushun County (Chinese: 富顺; pinyin: fùshùn) is a county of Sichuan Province, China. It is under the administration of Zigong city.

History[edit]

Fushun has a history over 1400 years. The county was bulit in 567 BC during the Southern and Northern Dynasties of China.[3]

Geography[edit]

The county has a total area of 1,603 km².

Population[edit]

As of 2006, the county had a population of 1,034,600.

External links[edit]

Fushun Government website

Hejiang County[edit]

Hejiang County (Chinese: 合江; pinyin: héjiāng) is a county of Sichuan Province, China. It is under the administration of Luzhou city.

History[edit]

Hejiang County has a history over 2100 years. The county was built in 115 BC during the Han Dynasty of China.[4] and was one of the three oldest counties in the upper Yangtze river area.[5]

Geography[edit]

The county has a total area of 1,532 km².

Population[edit]

As of 2007, the county had a population of 875,000.[6]

Adjacent Counties[edit]


合江县隶属泸州市,在赤水河与长江交汇三角地带。地理坐标东经105°32'至106°28',北纬28°27'至29°01'。东北部与重庆江津接壤,南连贵州赤水市、习水县,西临泸州市龙马潭、纳溪区,西南角接叙永县。


Transport[edit]

External links[edit]

Hejiang County Government website

Ministry of Health of the People's Republic of China Ministry of Culture of the People's Republic of China Ministry of Commerce of the People's Republic of China Ministry of Railways of the People's Republic of China Ministry of Finance of the People's Republic of China Ministry of Justice of the People's Republic of China Ministry of Transport of the People's Republic of China Ministry of Agriculture of the People's Republic of China Ministry of Housing and Urban-Rural Development of the People's Republic of China Ministry of Foreign Affairs of the People's Republic of China Ministry of Water Resources of the People's Republic of China Ministry of Supervision of the People's Republic of China Ministry of State Security of the People's Republic of China Ministry of Environmental Protection of the People's Republic of China Ministry of Industry and Information Technology of the People's Republic of China Ministry of Civil Affairs of the People's Republic of China Ministry of Science and Technology of the People's Republic of China Ministry of Human Resources and Social Security of the People's Republic of China Ministry of Land and Resources of the People's Republic of China