% This illustrates how to use fplot command and text 
% manipulation to plot functions defined symbolically. 

% This code plot a piece-wise function defined on the
% interval [1,11] where each piece is a linear function
% of the form ax+b. 

% A for loop is used to plot each piece, and "hold on" 
% command is used to keep the previous plots along with
% the new one. The coefficients a,b are chosen randomly
% during each iteration.   -Caner Kazanci

function multi_plot();
 
figure;
hold on;

for i=1:10
  
  a = ceil( 5 * rand(1,2) );
  fn = [ num2str(a(1)) '*x+' num2str(a(2)) ];

  [x,y]= fplot( fn , [i,i+1] );
  plot(x,y)
end

clear all

% Octave does not have "fplot" command. The code below
% uses only the "plot" command for the same result.
 
figure
hold on;

for i=1:10
  
  a = ceil( 5 * rand(1,2) );
  
  x = i:.01:(i+1);
  y = a(1) * x + a(2);

  plot(x,y)
end