Method sqrt

lib/java/lang/Math.java:813–813

Returns the closest double approximation of the square root of the argument. Special cases: sqrt(+0.0) = +0.0 sqrt(-0.0) = -0.0 sqrt( (anything < 0) ) = NaN sqrt(+infinity) = +infinity sqrt(NaN) = NaN

(double d)

     * @return the square root of the argument.
     */
    public static native double sqrt(double d);

    /**
     * Returns the closest double approximation of the tangent of the argument.