rational real number 中文意思是什麼
rational real number
解釋
有理實數-
One of the existing problems of the mine at present is : when the south open stope is over in 2005, where does the open north stope start for the sake of optimizing economic benefit and social benefit and environmental benefit of the mine facing to this problem, based on the large number real data of mine, in view of fuzzy attribute and complexity attribute existing in mine production, this paper applies fuzzy multi - attributes decision method to a lot of feasible technology, economy rational for schemes to appraise to proposes
當前礦山生產存在的問題之一是：南露天采場將於2005年開采結束，何處啟動北露天采場，才能使得礦山經濟效益、社會效益、環境效益保持最優化?針對銅綠山銅鐵礦北露天礦何處啟動最優這一問題，本文在收集大量銅礦山生產實際資料基礎上，針對礦山生產中存在的模糊性和復雜性，提出運用模糊多屬性決策方法對多個技術可行、經濟合理方案進行評價。 -
Rational number can approxim ate to real number, use the notation of approximate one can prove riemann function isn ' t differentiable anywhere, that the rational points are dense in unit circle
摘要利用有理數對實數逼近的表示方式，給出黎曼函數處處不可導的一種證明，給出單位圓周上的有理點在單位圓上稠密的證明。
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