% plot sin cos and tan d=0:1:360; r=(pi/180)*d; s1=sin(r); c1=cos(r); t1=tan(r); grid on plot(r,s1,'-') hold on xlim([0,2*pi]) ylim([-2,2]) plot(r,c1,'r-') plot(r,t1,'b--') title("Graph of Sin(x) Cos(x) & Tan(x)") xlabel("Angles") ylabel("Values") grid on grid minor legend("sin(x)","cos(x)","tan(x)")