📄 xpolyfit.m
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% xPolyfit.m
% 函数polyfit()的应用示例
%
% Author: HUANG Huajiang
% Copyright 2003 UNILAB Research Center,
% East China University of Science and Technology, Shanghai, PRC
% $Revision: 1.0 $ $Date: 2003/02/24 $
clear all
clc
t = [0 0.25 0.50 0.75 1.00];
y = [1.093 1.2560 1.6387 2.1570 2.7183];
p = polyfit(t,y,2)
ti = linspace(t(1),t(end),100);
yi = polyval(p,ti);
plot(t,y,'o',ti,yi,'-')
xlabel('t')
ylabel('y')
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