No Parking Symbol in MATLAB(mfile)

MATLAB Program:

t=0:0.01:2*pi;

x=2*cos(t);

y=2*sin(t);

plot(x,y,'r','linewidth',15);

hold on;

t=0:0.01:2*pi;

x=2*cos(t);

y=2*sin(t);

fill(x,y,'b');

axis square

hold on;

t=-1.4:0.1:1.4;

y=abs(t);

plot(t,y,'r','linewidth',12)

hold on;

t=-1.4:0.1:1.4;

y=-abs(t);

plot(t,y,'r','linewidth',12)