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<?php
/**
* PHP Framework
*
* @copyright Copyright 2013, StivaSoft, Ltd. (http://stivasoft.com)
* @link http://www.phpjabbers.com/
* @package framework.components
* @version 1.0.11
*/
/**
* Wrapper class for GNU Multiple Precision
*
* @package framework.components
* @link http://us3.php.net/manual/en/ref.gmp.php
* @since 1.0.4
*/
class pjGMP
{
/**
* Add numbers
*
* @param resource|string $a A number that will be added. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param resource|string $b A number that will be added. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @access public
* @return string A GMP number representing the sum of the arguments, converted to string.
* @link http://us3.php.net/manual/en/function.gmp-add.php
*/
public function add($a, $b)
{
return gmp_strval(gmp_add($a, $b));
}
/**
* Multiply numbers
*
* @param resource|string $a A number that will be added. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param resource|string $b A number that will be added. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @access public
* @return string A GMP number, converted to string.
* @link http://us3.php.net/manual/en/function.gmp-mul.php
*/
public function mul($a, $b)
{
return gmp_strval(gmp_mul($a, $b));
}
/**
* Raise number into power
*
* @param resource|string $base The base number. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param int $exp The positive power to raise the base.
* @access public
* @return string The new (raised) number, GMP number, converted to string.
* @link http://us3.php.net/manual/en/function.gmp-pow.php
*/
public function pow($base, $exp)
{
return gmp_strval(gmp_pow($base, $exp));
}
/**
* Raise number into power with modulo
*
* @param resource|string $base The base number. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param resource|string $exp The positive power to raise the base. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param resource|string $mod The modulo. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @access public
* @return string The new (raised) number, as a GMP number, converted to string.
* @link http://us3.php.net/manual/en/function.gmp-powm.php
*/
public function powmod($base, $exp, $mod)
{
return gmp_strval(gmp_powm($base, $exp, $mod));
}
/**
* Divide numbers
*
* @param resource|string $a The number being divided. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param resource|string $b The number that $a is being divided by. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @access public
* @return string A GMP number resource, converted to string.
* @link http://us3.php.net/manual/en/function.gmp-div-q.php
*/
public function div($a, $b)
{
return gmp_strval(gmp_div_q($a, $b, GMP_ROUND_ZERO));
}
/**
* Modulo operation
*
* @param resource|string $n It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param resource|string $d The modulo that is being evaluated. It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @access public
* @return string A GMP number resource, converted to string.
* @link http://us3.php.net/manual/en/function.gmp-mod.php
*/
public function mod($n, $d)
{
return gmp_strval(gmp_mod($n, $d));
}
/**
* Compare numbers
*
* @param resource $a It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @param resource $b It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
* @access public
* @return string Returns a positive value if a > b, zero if a = b and a negative value if a < b.
* @link http://us3.php.net/manual/en/function.gmp-cmp.php
*/
public function cmp($a, $b)
{
return gmp_strval(gmp_cmp($a, $b));
}
}
?>
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