Usage

AUTO_DERIV is written in strict ISO FORTRAN 90 and should be accepted by any F90 conforming compiler. It is encoded in the form of a Fortran module, which, when USEd, provides the definition of a derived type, TYPE (func) which lays out the memory for the value, the first and the second partial derivatives of any variable declared as such. Functions for the manipulation and extraction of the numerical values are also available. The user should define the kind, the number and the values of the independent variables and the order (first or/and second) of the derivatives required.