BCSQRT(3) 1 BCSQRT(3)
bcsqrt - Get the square root of an arbitrary precision number
SYNOPSIS
string bcsqrt (string $operand, [int $scale])
DESCRIPTION
Return the square root of the $operand.
PARAMETERS
o $operand
- The operand, as a string.
o $
scale -This optional parameter is used to set the number of digits after the decimal place in the result. You can also set the
global default scale for all functions by using bcscale(3).
RETURN VALUES
Returns the square root as a string, or NULL if $operand is negative.
EXAMPLES
Example #1
bcsqrt(3) example
<?php
echo bcsqrt('2', 3); // 1.414
?>
SEE ALSO
bcpow(3).
PHP Documentation Group BCSQRT(3)
