OPT_RGW(spot,strike,time_payout,time_exp,rate,d,volatility)
spot: spot price
strike: strike price
time_payout: time to dividend payout
time_exp: time to expiration
rate: annualized interest rate
d: amount of the dividend to be paid expressed in currency
volatility: annualized volatility of the asset in percent for the period through to the exercise date
OPT_BS, OPT_BS_DELTA, OPT_BS_RHO, OPT_BS_THETA, OPT_BS_GAMMA.