附录
In the Math library, 2 function are missed:
1.) Factorial function
2.) Combines function
1.) CODE:
<?PHP
function factorial ($n) {
if ($n == 0) { return 1; }
return $n * factorial($n - 1);
}
?>
2.) CODE:
<?PHP
function combinari ($n,$k) {
if (0 <= $k && 0 <= $n && $k <= $n) {
$combinari = factorial ($n) / (factorial ($k) * (factorial ($n - $k)));
} else {
print 'Calculul efectuat este imposibil, combinari de N luate cate K ( K mai mic sau egal cu N )!';
}
return $combinari;
}
?>
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User Contributed Notes补充说明
LXS
17-Oct-2008 06:26
17-Oct-2008 06:26