sqrt(0.0000000185); returns 0.00013601470. This is ok
sqrt(0.0000000065); returns 8.06225774. This is wrong. It had to be 0.000080622577483
How to fix this?
Thanks
You can use the Mathematical Extensions BC Math
http://php.net/manual/en/function.bcsqrt.php
echo bcsqrt('0.0000000065',20); //Result 0.00008062257748298549
Here the number has to be an string!
Note: The basic mathematical functions of php arent that nice...
Have a nice day.