・内挿＝補間＝interpolation ・外挿＝補外＝extrapolation

function chebyshev figure();hold on; title('Chebyshev polynomial'); for n=1:4 theta = linspace(0,2*pi,100); x = cos(theta); Tnx = cos(n*theta); plot(x,Tnx); end l = legend({'N=1' 'N=2' 'N=3' 'N=4'}); set(l,'FontSize',14); end チェビシェフ…