The following code

 ## Find leap years in the 20th century
 y = 1900:1999;
 e = eomday (y, repmat (2, [1, 100]));
 y(find (e == 29))

Produces the following output

ans =

   1904   1908   1912   1916   1920   1924   1928   1932   1936   1940   1944   1948   1952   1956   1960   1964   1968   1972   1976   1980   1984   1988   1992   1996