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 Copyright © 2020 Peter Jäckel.
 
 Permission to use, copy, modify, and distribute this software is freely granted,
 provided that this notice is preserved.

 WARRANTY DISCLAIMER
 The Software is provided "as is" without warranty of any kind, either express or implied,
 including without limitation any implied warranties of condition, uninterrupted use,
 merchantability, fitness for a particular purpose, or non-infringement.
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 The main function is
     StrikeFromForwardDelta(double volatility, double forward_delta, double F, double T, short /* Excel's BOOL type (code 'A') is a "short" */ with_premium)
 in file analytics.cpp. From there, please work your way through
     InverseModifiedDeltaWithPremiumFunction(double f, double alpha)
 in modifieddeltawithpremium.cpp and all its dependencies.


