Question

How to use bcsqrt() to get the square root of an arbitrary precision number in PHP

Answer 1

// string bcsqrt( string $operand [, int $scale = 0 ] )

echo bcsqrt('4', 3) . "<br \>";
echo bcsqrt('5', 3) . "<br \>";

 
/*
run: 

2.000
2.236

*/

 

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