code: @Override
      public void configure(String parameters) {
          if (parameters.isEmpty()) {
              return;
          }
          LinkedList<Double> values = new LinkedList<Double>();
  
          List<String> strValues = Op.split(parameters, " ");
          for (String strValue : strValues) {
              values.add(Op.toDouble(strValue));
          }
  
          if (values.size() % 2 == 0) {
              setHeight(1.0);
          } else {
              setHeight(values.removeLast());
          }
          setXY(toPairs(values));
      }
docs: Configures the term with the parameters given as `x1 y1 xn yn [height]`
  
  @param parameters as `x1 y1 xn yn [height]`