(PHP 3, PHP 4 )

bcsqrt --  Get the square root of an arbitrary precision number


string bcsqrt ( string operand [, int scale])

Return the square root of the operand. The optional scale parameter sets the number of digits after the decimal place in the result.

例子 1. bcsqrt() example


echo bcsqrt(2, 3); // 1.414


See also bcpow().

虎的笑话 虎的成语 虎的歇后语