function lucaspoly( n, x ) {
	var coefs;
	var an;
	var v;

	an = abs( n );
	coefs = coefficients( an );

	v = evalpoly( coefs, x );
	if ( n >= 0 ) {
		return v;
	}
	return pow( -1.0, an ) * v;
}
Evaluates a Lucas polynomial.

@param {integer} n - Lucas polynomial to evaluate
@param {number} x - value at which to evaluate a Lucas polynomial
@returns {number} result

@example
var v = lucaspoly( 5, 1.0 );
// returns 11.0