package org.geogebra.common.kernel.cas;
import org.geogebra.common.kernel.Kernel;
import org.geogebra.common.kernel.arithmetic.Command;
import org.geogebra.common.kernel.commands.CommandProcessor;
import org.geogebra.common.kernel.geos.GeoCurveCartesian;
import org.geogebra.common.kernel.geos.GeoElement;
import org.geogebra.common.main.MyError;
/**
* Derivative[ <GeoFunction> ] Derivative[ <GeoFunctionNVar>, <var> ]
* ParametricDerivative[ <GeoCurveCartesian> ]
*/
public class CmdParametricDerivative extends CommandProcessor {
/**
* Create new command processor
*
* @param kernel
* kernel
*/
public CmdParametricDerivative(Kernel kernel) {
super(kernel);
}
@Override
final public GeoElement[] process(Command c) throws MyError {
int n = c.getArgumentNumber();
String label = c.getLabel();
GeoElement[] arg;
switch (n) {
case 1:
arg = resArgs(c);
// use instanceof (2D only)
if (arg[0] instanceof GeoCurveCartesian) {
GeoCurveCartesian f = (GeoCurveCartesian) arg[0];
AlgoParametricDerivative algo = new AlgoParametricDerivative(
cons, label, f);
GeoElement[] ret = { algo.getParametricDerivative() };
return ret;
}
throw argErr(app, c, arg[0]);
default:
throw argNumErr(app, c, n);
}
}
}