Fortran Ⅳ language computer subroutines using conjugate gradient method for finding the minimum of a nonlinear function of several unconstrained variables were used to find the minimum annual cost design of an irrigation pipe line.
The annual cost...
Fortran Ⅳ language computer subroutines using conjugate gradient method for finding the minimum of a nonlinear function of several unconstrained variables were used to find the minimum annual cost design of an irrigation pipe line.
The annual cost includes capital recovery plus cost of pumping. Result of the design with eight decision variables are presented.