<html>
<head>
<title>Actividad 2</title>
</head>
<body bgcolor="#66CCCC"><center>
<hr><h1>Evolucion poblacion mundial</h1><hr>
<?php
$Periodo=array(1975,1980,1985,1990,1995,2000,2005,2008,2010,2011); $Poblacion=array(4068109000,4434682000,4830978000,5263593000,5674328000,6070581000,6453628000,6709132760,6854196000,7000000000); $Aumento[0]=3692492000;;
for($i=1;$i<count($Periodo)+1;$i++){ //$Aumento[$i]=100*(($Poblacion[$i+1])/($Poblacion[$i-1])-1);
$Aumento[$i]=($Poblacion[$i])/($Poblacion[$i-1]);
}
echo '<table border=1>
<tr>
<th width=100 align="center"><b>Periodo (años)</b></th>
<th width=100 align="center"><b>Poblacion</b></th>
<th width=100 align="center"><b>% aumento</b></th>
</tr>';
for($i=0;$i<count($Periodo);$i++){ echo "<tr><td align='center'>".$Periodo[$i]."</td>";
echo "<td align='center'>".$Poblacion[$i]."</td>";
echo "<td align='center'>".$Aumento[$i]."</td></tr>";
}
//echo '<p><h3><b>El aumento total de la poblacion es de '.$mediatotal.'</b></h3>';
?>
</body>
</html>
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