function fresnel( x ) {
	var out = new Float64Array( 2 );
	addon( x, out );
	return out;
}
Computes the Fresnel integrals S(x) and C(x).

@private
@param {number} x - input value
@returns {Float64Array} S(x) and C(x)

@example
var v = fresnel( 0.0 );
// returns <Float64Array>[ 0.0, 0.0 ]

@example
var v = fresnel( 1.0 );
// returns <Float64Array>[ ~0.438, ~0.780 ]

@example
var v = fresnel( Infinity );
// returns <Float64Array>[ ~0.5, ~0.5 ]

@example
var v = fresnel( -Infinity );
// returns <Float64Array>[ ~-0.5, ~-0.5 ]

@example
var v = fresnel( NaN );
// returns <Float64Array>[ NaN, NaN ]