| 三次样条函数拟合在光度分析中的作用 |
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| 引用本文： | 段秉义,赵玉梅,郝杰芬. 三次样条函数拟合在光度分析中的作用[J]. 陕西师范大学学报(自然科学版), 1991, 0(4) |
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| 作者姓名： | 段秉义 赵玉梅 郝杰芬 |
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| 作者单位： | 陕西师大学院化学系，陕西师大学院化学系，陕西师大学院化学系 |
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| 摘 要： | 1三次样条插值的基本原理本文采用以下的三次样条函数的插值公式:q_i(x)=ty_i+■y_(i-1)+△x_i[(k_(i=1)-d)t■~2-(k_i-d_i)t~2■],i=1,2,3,…,m(1)式中,△x_i=x_i-x_(i-1),t=(x-x_(i-1)j)/△x_i,■=1-t,△y_i=y_i-y_(i-1),△y_i/△x_i=d_i.x_i,y_i为已知的实验数据.三次样条函数是由(1)式所示的m个三次多项式组合而成的分段表示的函数.它适合于处理多个数据点且多弯曲的曲线问题,由(1)式可知,每一q_i(x)方程只有两个待定常教K_(i-1)和K_i.
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Application of third spline function fitting in spectrophotometric analysis |
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| Duan Binyi Zhao Yumei Hao Jiefen. Application of third spline function fitting in spectrophotometric analysis[J]. Journal of Shaanxi Normal University: Nat Sci Ed, 1991, 0(4) |
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| Authors: | Duan Binyi Zhao Yumei Hao Jiefen |
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| Affiliation: | Department of Chemistry |
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| Abstract: | It is described that the non-linear absorption of spectrophotometric ana- lysis is fitted with third spline function.The results calculated onmicrocom- puter show that the fitting accuracy of this method is much better than the third curve fitting method. |
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| Keywords: | spline function spechopholometric analysis fitting |
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