PHP bcsqrt function

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bcsqrt

(PHP 3, PHP 4, PHP 5)

bcsqrt — Get the square root of an arbitrary precision numberDescriptionstring bcsqrt ( string operand [, int scale] )

Return the square root of the operand.

Parameters

operand

The operand, as a string.

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().


Return Values

Returns the square root as a string, or NULL if
operand is negative.

Examples

Example 1. bcsqrt() example

 
echo bcsqrt('2', 3); // 1.414

See Also

bcpow()


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Published:
2.26.07 / 1am
Category:
PHP Functions
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