matlab,ify语句绘制分段图形,x^2-1(x>=1) 0(-1

clear;clcx=-5:0.1:5;for ii=1:length(x) if x(ii)>=1 y(ii)=x(ii)^2-1; elseif x(ii)<1&x(ii)>-1 y(ii)=0*x(ii); else y(ii)=-x(ii)^3-1; endendplot(x,y)%%%%%%%%%%%%%%%%%%%%或 clear;clcfor x=-5:0.1:5; if x>=1 y=x^2-1; elseif x<1&x>-1 y=0*x; else y=-x^3-1; end plot(x,y,'*') hold onend