docs: public static double blackScholesOptionValue(
  			double initialStockValue,
  			double riskFreeRate,
  			double volatility,
  			double optionMaturity,
  			double optionStrike)
  	{
  		return blackScholesGeneralizedOptionValue(
  				initialStockValue * Math.exp(riskFreeRate * optionMaturity),	// forward
  				volatility,
  				optionMaturity,
  				optionStrike,
  				Math.exp(-riskFreeRate * optionMaturity)						// payoff unit
  				);
  	}