Curve-fitting is an art, and a whole article could easily be devoted to it, but look up help fit and the beginners_guide and tips sub-topics to get a start.
曲线拟合是一门艺术，需要用一整篇文章来讲述，但是请参阅 help fit 和 beginners_guide and tips 来对它获得初步了解。
2
On the basis of Chebyshev curvefitting method, a new method to design worn profile tread is proposed by this paper.
本文在切比雪夫曲线拟合方法的基础上，提出了一种高次曲线磨耗形踏面的设计方法。
3
This paper puts forward a seasonal neural network model to curvefitting analysis for nonlinearity and predict for the seasonal time series of outpatient amount.