Black-Scholes-Merton differential operator
test coefficients are tested against constant BSM operator
solve linear system with SOR approach
apply operator to a given array
solve linear system for a given right-hand side
solve linear system for a given right-hand side without result Array allocation. The rhs and result parameters can be the same Array, in which case rhs will be changed
identity instance
Black-Scholes-Merton differential operator
test coefficients are tested against constant BSM operator