docs: public LinearInterpolatedTimeDiscreteProcess add(LinearInterpolatedTimeDiscreteProcess process) throws CalculationException {
  		Map<Double, RandomVariable> sum = new HashMap<>();
  
  		for(double time: timeDiscretization) {
  			sum.put(time, realizations.get(time).add(process.getProcessValue(time, 0)));
  		}
  
  		return new LinearInterpolatedTimeDiscreteProcess(timeDiscretization, sum);
  	}