On using convex duality [19, 60], a detailed mathematical treatment of the primal and dual
optimization problems is presented in Reference [12]. Numerical algorithms such as steepest
descent, Newton’s method, quasi-Newton (variable metric) methods, and interior-point methods
are used to solve such unconstrained optimizations problems [60]. Interior-point methods are attractive
for large systems with equality and inequality constraints [61]; for entropy maximization, a