视频

拓展学习

引例 零件加工问题 

>> x= [0,3,5,7,9,11,12,13,14,15];

>> y=[0,1.2,1.7,2.0,2.1,2.0,1.8,1.2,1.0,1.6];

>> x1=0:0.1:15;

>> y1=interp1(x,y,x1,'spline');

>> plot(x1,y1)

粮储仓的通风控制问题

>> y=(0:5:20)';

>> z=[8.9,10.32,11.3,12.5,13.9,15.3,17.8,21.3;8.7,10.8,11,12.1,13.2,14.8,16.55,20.8;8.3,9.65,10.88,12,13.2,14.6,16.4,20.5;8.1,9.4,10.7,11.9,13.1,14.5,16.2,20.3;8.1,9.2,10.8,12,13.2,14.8,16.9,20.9];

>> xi=20:90;

>> yi=(0:20)';

>> zi=interp2(x,y,z,xi,yi,'spline');

>> surf(xi,yi,zi)