gmp_mul
(PHP 4 >= 4.0.4, PHP 5)
gmp_mul — Multiply numbers
Description
resource gmp_mul
( resource
$a
, resource $b
)
Multiplies a by b
and returns the result.
Parameters
-
a -
A number that will be multiplied by
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.
-
b -
A number that will be multiplied by
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.
Return Values
A GMP number resource.
Examples
Example #1 gmp_mul() example
<?php
$mul = gmp_mul("12345678", "2000");
echo gmp_strval($mul) . "\n";
?>
The above example will output:
24691356000
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Математические расширения
- GNU Вычисления с увеличенной точностью
- gmp_abs
- gmp_add
- gmp_and
- gmp_clrbit
- gmp_cmp
- gmp_com
- gmp_div_q
- gmp_div_qr
- gmp_div_r
- gmp_div
- gmp_divexact
- gmp_export
- gmp_fact
- gmp_gcd
- gmp_gcdext
- gmp_hamdist
- gmp_import
- gmp_init
- gmp_intval
- gmp_invert
- gmp_jacobi
- gmp_legendre
- gmp_mod
- gmp_mul
- gmp_neg
- gmp_nextprime
- gmp_or
- gmp_perfect_square
- gmp_popcount
- gmp_pow
- gmp_powm
- gmp_prob_prime
- gmp_random_bits
- gmp_random_range
- gmp_random_seed
- gmp_random
- gmp_root
- gmp_rootrem
- gmp_scan0
- gmp_scan1
- gmp_setbit
- gmp_sign
- gmp_sqrt
- gmp_sqrtrem
- gmp_strval
- gmp_sub
- gmp_testbit
- gmp_xor
Коментарии
<?php
function fact($x)
{
$factorial = 1;
for ($i=2; $i < $x; $i++) {
$factorial = gmp_mul($factorial, $i);
}
return $factorial;
}
echo gmp_strval(fact(1000)) . "\n";
?>