请问:求matlab程序:知道X,Y,Z的值,怎样求解(x,y,z)的坐标值,知道另外一 ...答:clear;clc;close all X=linspace(-1,5,10);Y=linspace(-11,-5,10);Z=linspace(1,9,10);D=sqrt(X.^2+Y.^2+Z.^2);plot3(X,Y,Z,'*:g',X,Y,D,'ro')X,Y,Z的对应位置就是所求的x,y,z)的坐标值,每个点的(x,y,z)坐标值表就示其到坐标轴的距离 ...
急!求高手,如何用matlab进行曲线拟合,就是已知x轴和y轴的数值,拟合出一...答:y=[ 31.5300 30.4300 29.3800 28.8000 28.1300 27.5900 25.5300 24.3000 22.8300 21.5700 21.8600 29.4900 34.5200 41.7600 44.6000];用polyfit拟合 p=polyfit(x,y,2); %用2次多项式 figure(1);title('拟合1')hold on plot(x,y,'+',x,polyval(p,x));legend('原始值'...
matlab插值: 已知数据x=[0,3,5,7,9,11,12,13,14,15] y=[0,1.2,1.7,2...答:lengthofx=length (scalarx);for i=1:lengthofx;ynearest(i)=interp1(x,y,scalarx(i),'nearest');ylinear(i)=interp1(x,y,scalarx(i),'linear');yspline(i)=interp1(x,y,scalarx(i),'spline');ycubic(i)=interp1(x,y,scalarx(i),'cubic');end subplot(2,2,1),plot(x,y,...