x=-1:.1:1; plot(x,2*exp(x)+x.*exp(-x),0,2,'o') grid on axis equal xlabel('x');ylabel('y');
x=-1:.1:1; plot(x,x.*(cos(x)-sin(x)),0,0,'o') grid on axis equal xlabel('x');ylabel('y');
x=-.2:.05:.2; [X,C1]=meshgrid(x,-.3:.1:.3); Y=exp(3*X).*(C1+.6*X); plot(x,Y) hold on plot(zeros(1,7),-.3:.1:.3,'ok') hold off grid on axis equal xlabel('x');ylabel('y');
x=-1:.05:1; [X,C1]=meshgrid(x,-1:.4:1); Y=exp(-X).*(C1.*cos(X)+sin(X)); plot(x,Y) hold on plot(zeros(1,6),-1:.4:1,'ok') hold off grid on axis equal xlabel('x');ylabel('y');