php man page for bcsqrt

Query: bcsqrt

OS: php

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

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)
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