%ticN=input('Enter the number of N:');pointx=ones(1,N+1);pointy=ones(1,N+1);%*******************for i=1:N+1    pointx(i)=(-1)+2.*(i-1)./N;    pointy(i)=(1+25.*(pointx(i).^2)).^(-1);end%**********************x=linspace(-1,1,1000);%x=-1:0.5:1;y=(1+25.*(x.^2)).^(-1);xi=linspace(-1,1,1000);%xi=-1:0.5:1;yi=lagrange_interpolating(xi,pointx,pointy);%plot(xi,yi);%plotyy(x,y,xi,yi,'plot')%plot(x,y,xi,yi,'--')%toc%t=tocplot(x,y,xi,yi,'--');%********************************%subplot(1,2,1);%plot(x,y);%subplot(1,2,2);%plot(xi,yi);