/**
* @param cons construction
* @param label label for output
* @param n function parameter
* @param f function
*/
public AlgoTangentFunctionNumber(Construction cons, String label, NumberValue n, GeoFunction f) {
super(cons);
this.n = n;
ngeo = n.toGeoElement();
this.f = f;
tangent = new GeoLine(cons);
T = new GeoPoint(cons);
tangent.setStartPoint(T);
// derivative of f
// now uses special non-CAS version of algo
algo = new AlgoDerivative(cons, f, true);
deriv = (GeoFunction) algo.getResult();
cons.removeFromConstructionList(algo);
setInputOutput(); // for AlgoElement
compute();
tangent.setLabel(label);
}
