4-6.m

MATLAB科学计算与工程分析源代码源程序3

>> x=[0.1,0.2,0.15,0,-0.2,0.3];
>> y=[0.95,0.84,0.86,1.06,1.50,0.72];
>> xi=-0.2:0.01:0.3;
>> yi=lagrange(x,y,xi)


>> plot(x,y,'o',xi,yi,'k');
>> title('lagrange');