MATLAB 中的 Hermite 插值多项式
任何人都知道我在 MATLAB 中哪里可以找到 Hermite 插值算法。哪种 Hermite 插值算法可以解决这个问题?
我需要计算一个多项式。示例(仅示例):
x=[1,2,3];
y=[0.5,1,12]
y'=[1,0.2,0.9]
y''=[0.1,0.6,0.8]
x2=[1,1.5,2,2.5,3,3.5];
polynom=hermit_interpolation(x,y,y',y'',x2); % i need the polynom to
y2=polyval(polynom,x2);
plot(x2,y2);
感谢您的回答。
Anyone know where i find the Hermite interpolation algorithm in MATLAB. Which Hermite interpolation algorithm solve this?
I need to calculate a polynom. Example (just example):
x=[1,2,3];
y=[0.5,1,12]
y'=[1,0.2,0.9]
y''=[0.1,0.6,0.8]
x2=[1,1.5,2,2.5,3,3.5];
polynom=hermit_interpolation(x,y,y',y'',x2); % i need the polynom to
y2=polyval(polynom,x2);
plot(x2,y2);
Thanks for any answers.
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该函数是
pchip()
,它的示例很好地记录在:http://www.mathworks.com/help/techdoc/ref/pchip.html。The function is
pchip()
, which is documented nicely with examples at: http://www.mathworks.com/help/techdoc/ref/pchip.html.