ych.m

数学建模与数学实验（第3版）课件+matlab

x0=linspace(-5,5,11);
y0=1./(1+x0.^2);
x=linspace(-5,5,100);
y=interp1(x0,y0,x,'spline');
x1=linspace(-5,5,100);
y1=1./(1+x1.^2);
plot(x1,y1,'k',x0,y0,'+',x,y,'r');