function div( x, y ) {
	return addon( x, y );
}
Divides two double-precision floating-point numbers `x` and `y`.

@private
@param {number} x - first input value (dividend)
@param {number} y - second input value (divisor)
@returns {number} result

@example
var v = div( -1.0, 5.0 );
// returns -0.2

@example
var v = div( 2.0, 5.0 );
// returns 0.4

@example
var v = div( 0.0, 5.0 );
// returns 0.0

@example
var v = div( -0.0, 5.0 );
// returns -0.0

@example
var v = div( NaN, NaN );
// returns NaN