gmp_sqrt
(PHP 4 >= 4.0.4, PHP 5)
gmp_sqrt -- Calculate square root
Description
resource
gmp_sqrt
( resource a )
Calculates square root of
a
and returns the
integer portion of the result.
例子 1.
gmp_sqrt()
example
<?php
$sqrt1
=
gmp_sqrt
(
"9"
);
$sqrt2
=
gmp_sqrt
(
"7"
);
$sqrt3
=
gmp_sqrt
(
"1524157875019052100"
);
echo
gmp_strval
(
$sqrt1
) .
"\n"
;
echo
gmp_strval
(
$sqrt2
) .
"\n"
;
echo
gmp_strval
(
$sqrt3
) .
"\n"
;
?>
|
The printout of the above program will be:
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