Introduction to MATLAB

Line Plots

>> t = 0:pi/100:2*pi;  
>> y = sin(t);  
>> plot(t,y)  

>> xlabel('t')  
>> ylabel('sin(t)')  
>> title('The plot of t vs sin(t)')  

>> y2 = sin(t-0.25);  
>> y3 = sin(t+0.25);  
>> hold on;     % <== to keep previously defined stuff  
>> plot(t,y,t,y2,t,y3)    % why not just plot only the 2nd and 3 curves?
>> legend('sin(t)','sin(t-0.25)','sin(t+0.25',1)