The FortranCalculus (FC) compiler calculates partial derivatives on the fly . All a user does is enter their math equations & an objective (function) and FC finds the optimal solution for the given problem. The FC compiler i s free (download and use) at least for the next year or two; see
FC can solve Algebraic thru Differential equations while 'tweaking' paramet ers. FC uses Automatic Differentiation (AD) to calculate either the jocabi an or Hessian matrix on the fly. Thus it is easy to use (next thing to a s lide rule!) and exact. Most problems require a math model (i.e. your equat ions) and just a handful of other misc. code. Try it, you'll like it.
Our textbook,
Please share FC with your colleagues, students, and friends. Knowing FC wil l help future students get jobs in industries that include math modeling.