www.pudn.com > programradarsystemdisign.zip > Fig2_7.m

% This program can be used to reproduce Fig. 2.7 
close all 
clear all 
format long 
ii = 0; 
for x = 0:.1:20 
   ii = ii+1; 
   val1(ii) = incomplete_gamma(x , 1); 
   val2(ii) = incomplete_gamma(x , 3); 
   val = incomplete_gamma(x , 6); 
   val3(ii) = val; 
   val = incomplete_gamma(x , 10); 
   val4(ii) = val; 
end 
xx = 0:.1:20; 
plot(xx,val1,'k',xx,val2,'k:',xx,val3,'k--',xx,val4,'k-.') 
legend('N = 1','N = 3','N = 6','N = 10') 
xlabel('x') 
ylabel('Incomplete Gamma function (x,N)') 
grid