Module OPTIF9 in CMLIB Module OPTIF9 in CMLIBSolves the unconstrained minimization problem: minimize the real-valued function f of n variables, where f is assumed to be twice continuously differentiable. User has full control of options.
CALL OPTIF9(NR, N, X, FCN, D1FCN, D2FCN, TYPSIZ, FSCALE, METHOD, IEXP, MSG, NDIGIT, ITNLIM, IAGFLG, IAHFLG, IPR, XPLS, FPLS, GPLS, ITRMCD, A, WRK)| G1b1a | Unconstrained optimization of a smooth multivariate function, user provides no derivatives |
| G1b1b | Unconstrained optimization of a smooth multivariate function, user provides first derivatives |
| G1b1c | Unconstrained optimization of a smooth multivariate function, user provides first and second derivatives |