Second order polynomial regression mathematical model treatment of flow capacity - lift head property curve of centrifugal pump 揚程性能曲線的二階多項式回歸數(shù)學模型處理
In this paper , we first reconstruct a second order polynomial surface to approximate the original point model in the local area of each point , which is then restricted within a so - called - confidence region , producing a - surfel 摘要在每個點附近重建一個二次多項式函數(shù)曲面逼近原點模型,并根據(jù)逼近誤差將每個重建曲面限制在稱為置信鄰域的范圍內(nèi),從而形成一個面元。