roptions - Option Strategies and Valuation
Collection of tools to develop options strategies, value
option contracts using the Black-Scholes-Merten option pricing
model and calculate the option Greeks. Hull, John C. "Options,
Futures, and Other Derivatives" (1997, ISBN:0-13-601589-1).
Fischer Black, Myron Scholes (1973) "The Pricing of Options and
Corporate Liabilities" <doi:10.1086/260062>.