function sici( x ) {
	return fcn( x, [ 0.0, 0.0 ], 1, 0 );
}
Computes the sine and cosine integrals.

@param {number} x - input value
@returns {Array<number>} output array

@example
var v = sici( 3.0 );
// returns [ ~1.849, ~0.12 ]

@example
var v = sici( 0.0 );
// returns [ 0.0, -Infinity  ]

@example
var v = sici( -9.0 );
// returns [ ~-1.665, ~0.055 ]

@example
var v = sici( NaN );
// returns [ NaN, NaN ]