2008年4月22日

平均數-全距管制圖 (X-bar R Chart) Excel 樣板

X-bar R管制圖可說是最常用的管制圖﹐我們特地整理了Excel樣板檔案﹐供網友們下載使用﹐期盼試用過的網友提供改正意見。


下載點:x'-R template

相關連結:平均數-全距管制圖 (X-bar R Chart)

2008年3月2日

Operations Research, 作業研究

http://en.wikipedia.org/wiki/Operations_research

Operations Research (OR) in the US, and Operational Research in the UK, is an interdisciplinary branch of applied mathematics which uses methods like mathematical modeling, statistics, and algorithms to arrive at optimal or good decisions in complex problems which are concerned with optimizing the maxima (profit, faster assembly line, greater crop yield, higher bandwidth, etc) or minima (cost loss, lowering of risk, etc) of some objective function. The eventual intention behind using operations research is to elicit a best possible solution to a problem mathematically, which improves or optimizes the performance of the system.


待續!

 
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