【matlab题目】:利用四点,样条插值函数画一条通过这四点的圆答:clc clear all x0=[1,0,-1.1];y0=[0,1,0];plot(x0,y0,'ro');hold on xy0=[x0' y0'];myfun=inline('r-x0.^2','r','x0');r=nlinfit(x0,y0.^2,myfun,1.1);r=sqrt(r);theta=0:pi/20:2*pi;plot(r*cos(theta),r*sin(theta),'k')axis equal ...
您知道在matlab中进行四维插值的命令是什么吗?就是有x,y,z三列不同...答:三、多维插值 1.interp3 三维插值,VI=interp3(X,Y, Z, V, XI, YI, ZI, method),用法同二维插值interp2。2.n维插值 VI=interpn(X1, X2, X3…, V, Y1, Y2, Y3,…, method),用法同二维插值interp2。3.ndgrid 产生n维空间上的栅格。[X1, X2, X3, …]=ndgrid(x1, x2, x3...