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george
For Loop/PHP
2 Answer(s)      a year and 9 months ago
Posted in : PHP


Write a class called math. It is to have one property called num. It also has one method called factorial. This method is to start at 1 and multiply all of the integers to num. If num is 5 then you would multiply 12345. How would you write this as a loop? Would I need to use the for loop or do/while loop?


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September 27, 2012 at 11:28 AM


PHP Factorial Example:

<?php 
$n = 5;
$i = 1;
$f = 1;
while($i<$n){
$i = $i + 1;
$f = $f * $i;
}
echo $f; 
?>


September 27, 2012 at 11:29 AM


Here is a java example that finds the factorial of a number.

public class math{
public static long factorial(int n){
if(n <= 1) 
return 1;
else
return n * factorial(n - 1);
}
public static void main(String [] args){
    int num=5;
System.out.println(factorial(num));
}
}


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