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gmp_sqrtrem

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gmp_sqrtremSquare root with remainder

Beschreibung

gmp_sqrtrem(GMP|int|string $num): array

Calculate the square root of a number, with remainder.

Parameter-Liste

num

The number being square rooted.

Ein GMP-Object, ein Integer oder eine numeriche Zeichenkette.

Rückgabewerte

Returns array where first element is the integer square root of num and the second is the remainder (i.e., the difference between num and the first element squared).

Beispiele

Beispiel #1 gmp_sqrtrem() example

<?php
list($sqrt1, $sqrt1rem) = gmp_sqrtrem("9");
list(
$sqrt2, $sqrt2rem) = gmp_sqrtrem("7");
list(
$sqrt3, $sqrt3rem) = gmp_sqrtrem("1048576");

echo
gmp_strval($sqrt1) . ", " . gmp_strval($sqrt1rem) . "\n";
echo
gmp_strval($sqrt2) . ", " . gmp_strval($sqrt2rem) . "\n";
echo
gmp_strval($sqrt3) . ", " . gmp_strval($sqrt3rem) . "\n";
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

3, 0
2, 3
1024, 0

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