ition copied from the principal brands of the buiseness, trimble and topocon especially, my equation is about the quality of these equipement, have someone of you tried a chinese materiel in his daily work?? what's your impressions??…
sophistication present in early Chinese surveying theory. The Haidao composed in A.D. 263 by Liu Hui, established the mathematical procedures for much of East Asian surveying activity for the next one thousand years. The contents of the Haidao also testify to the ability of the Chinese to systematize mathematics and hint at the use of proof in Chinese mathematics, a concept usually associated with Greek mathematical thought.Frank Swetz provides an annotated translation of the Haidao and an analysis of its surveying problems. In particular, he details surveying techniques and undertakes a mathematical exposition of the Chinese chong cha solution procedures. The Haidao is a testimony to the ingenuity and skill of China's early surveyors and its author, Liu Hui. This study complements and extends the findings of Swetz's previous book, Was Pythagoras Chinese? An Examination of Right Triangle Theory in Ancient China.
Frank Swetz, "The Sea Island Mathematical Manual: Surveying and Mathematics in Ancient China"
Pennsylvania State University Press | 1992 | ISBN: 0271007990, 0271024526 | 73 pages | File type: PDF | 2,3 mb
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and services by 2020, said an industry source.
The policies, which are likely to be issued by the State Council this month, will call for the use of tax cuts and other measures to support the industry, according to Cao Hongjie, vice-president of Beijing UniStrong Science & Technology Co Ltd, a Chinese maker of navigation products.
The polices are aimed at making the geoinformation industry - which offers a range of products and services related to surveying, mapping and navigation - one of China's strategic emerging industries, Wang Chunfeng, deputy director-general of the National Administration of Surveying, Mapping and Geoinformation, said last month. Read More on China Daily
[found via ASM Newsletter]