Question

matlab绘制曲线，把几个点用曲线平滑过渡~

x1=[10,20,30,40,50];
y1=[18.13286,81.2038,98.53712,223.075,264.4804];
平滑曲线要经过这几个点，并用符号在曲线上表示出这几个点，比如用圆圈~
求助怎么编，谢谢

Answer 1

 x1=[10,20,30,40,50];

y1=[18.13286,81.2038,98.53712,223.075,264.4804];

plot(x1,y1,'or');

hold on;

X = min(x1):.1:max(x1);

Y = interp1(x1,y1,X,'cubic');

plot(X,Y);

hold off;