%% 2D Plot in Matlab www.mechanicsoft.ir
close all
x=-10:1:10; 
y=sin(50.*x)+.01.*x.^3;
figure(1);plot(x,y)
title('plot f(x)=sin(50.*x)+.01.*x.^3');
xlabel('Time');
ylabel('Displasement');
legend('blue');
text(-6,6,' \uparrow www.mechanicsoft.ir','FontSize',18);
%% 2D Multi Plot in Matlab www.mechanicsoft.ir
%% First Method
x=-10:1:10; 
y=sin(50.*x)+.01.*x.^3;
z=cos(50.*x)-.01.*x.^4;
w=-cos(50.*x)+.01.*x.^4;
figure(2);plot(x,y,'--b',x,z,'.-g',x,w,':r','LineWidth',2)
title('plot y=f_1(x) ,z=f_2(x),w=f_3(x)');
xlabel('Time');
ylabel('Displasement');
legend('blue','green','red');
text(-7,-100,'  www.mechanicsoft.ir','FontSize',18);
%% Second Method
x=-10:1:10; 
y=sin(50.*x)+.01.*x.^3;
z=cos(50.*x)-.01.*x.^4;
w=-cos(50.*x)+.01.*x.^4;
figure(3);
plot(x,y,'o','color',[1 0 1],'LineWidth',2)
hold on
plot(x,z,'.-','color',[.5 .75 0],'LineWidth',2)
plot(x,w,'x','color',[0 0 1],'LineWidth',2)
title('plot y=f_1(x) ,z=f_2(x),w=f_3(x)');
xlabel('Time');
ylabel('Displasement');
legend('color1','color2','color3');
text(-7,-100,'  www.mechanicsoft.ir','FontSize',18);