论文部分内容阅读
本文编制了用于TI—59型可编程序计算器的正交函数法程序,并有流程图,正交多项式回归系数dj=(?)(Xa)式中Ψ_j(Xa)为正交多项式,Ya为所用波长区间内等间隔各试点波长处的吸收值。根据正交函数的原理,首先选择多项式的次数,它主要取决于主成份的吸收曲线形状,然后选择最适波长区间。通常根据中间波长λm为横坐标,d_j为纵坐标作图,选取与无关吸收d_j(以d_j′表示无关吸收的d_j)为零的λm_j~3相应的波长范围以供实验用,
In this paper, an orthogonal function method program for TI-59 programmable calculator has been compiled and has a flow chart. The orthogonal polynomial regression coefficient dj = (?) (Xa) where Ψ_j (Xa) is an orthogonal polynomial, Ya is the absorbance at each pilot wavelength at equal intervals within the wavelength range used. According to the principle of the orthogonal function, the number of polynomials is chosen first, which depends mainly on the shape of the absorption curve of the main component and then the optimal wavelength interval is selected. Usually according to the middle wavelength λm as the abscissa and d_j as the ordinate and select the corresponding wavelength range of λm_j ~ 3 which is independent of the absorption d_j (d_j ’indicates that d_j is irrelevant absorption) is zero for experimental purposes,