x = -5:.1:5;
y = sin(x);
y1=tanh(x);
y2=cos(x);
y3=exp(x);
y4=0.5*x;
y5=-0.5*x;
y6=0.1*x.^2;
y7=1./x;
y8=sinh(x);
y9=cosh(x);
set(0,'defaultfigurecolor','w');
figure;
plot(x,y,'-o');
hold on;
plot(x,y1,'-^');
plot(x,y2,'-+');
plot(x,y3,'-*');
plot(x,y4,'-.');
plot(x,y5,'-x');
plot(x,y6,'-s');
plot(x,y7,'-d');
plot(x,y8,'-p');
plot(x,y9,'-h');
axis([-5 5 -1 1]);
legend('sin(x)','tanh(x)','cos(x)','e^x','0.5x','-0.5x','0.1x^2','1/x','sinh(x)','cosh(x)');
xlabel('x');
ylabel('y');
