num x
) Converts x
to a double and returns the positive square root of the value.
Returns -0.0 if x
is -0.0, and NaN if x
is otherwise negative or NaN.
Source
/**
* Converts [x] to a double and returns the positive square root of the value.
*
* Returns -0.0 if [x] is -0.0, and NaN if [x] is otherwise negative or NaN.
*/
external double sqrt(num x);