In [36]:

    

t = [0:0.01:0.98];
y1 = sin(2 * pi * 4 * t);


    

In [37]:

    

plot(t, y1)


    

In [38]:

    

y2 = cos(2 * pi * 4 * t);


    

In [39]:

    

plot(t, y2)


    

In [40]:

    

plot(t, y1);
hold on;
plot(t, y2, 'r');  % r in red colour
xlabel('time')
ylabel('value')
legend('sin', 'cos')
title('my plot')
print -dpng 'myplot.png'


    

In [41]:

    

% close % close down the plot


    

In [42]:

    

figure(1); plot(t, y1)
figure(2); plot(t, y2)


    

In [43]:

    

subplot(1,2,1); % Divides plot in a 1x2 grid and access first element
plot(t, y1)
subplot(1,2,2);  % second element
plot(t, y2)
axis([0.5 1 -1 1])  % set xrange and yrange


    

In [44]:

    

% clf % clear figure


    

In [45]:

    

A = magic(5)


    

    




A =

   17   24    1    8   15
   23    5    7   14   16
    4    6   13   20   22
   10   12   19   21    3
   11   18   25    2    9

In [46]:

    

imagesc(A)  % Plots as grid of colours


    

In [47]:

    

imagesc(A); colorbar; colormap gray;  % Changes colour map and adds in an index bar


    

In [48]:

    

imagesc(magic(15)), colorbar, colormap gray;


    

In [49]:

    

a=1, b=2, c=3  % comma chaining with output


    

    




a =  1
b =  2
c =  3

In [50]:

    

a=1; b=2; c=3;  % comma chaining without output