matlab 任意三点求抛物线答:function myfunf = figure('Visible','on','Units','normalized');data=[-1,0,1;0,1,0];%[x1,x2,x3;y1,y2,y3]ax = axes('Units','normalized','position',[.1 .28 .8 .65],'box','on');myplot;title(sprintf('y=%.3fx^2%+.3fx%+.3f',[...
matlab实用例子大全、求!!!答:axis offtitle('Figure2:Transparent')hidden off实例21PEAKS函数曲线function shili21h0=figure('toolbar','none',... 'position',[200 100 450 450],... 'name','实例21');[x,y,z]=peaks(30);subplot(2,1,1)x=x(1,:);y=y(:,1);i=find(y>0.8&y<1.2);j=find(x>-0.6&x<0.5);z(i...