NLPAPI: An API to Nonlinear Programming Problems
NLPAPI is a set of subroutines and data structures for defining nonlinear programming problems. It includes an interface to call LANCELOT to solve the problem (you need to get your own copy of LANCELOT).
A gzipped tar file is available from the
A TeX file with a description of how to use the code, and how to code your own problems is included in the file Doc/NLPAPI-UG.tex (
A reference manual listing all of the routines is in Doc/NLPAPI-Ref.tex (
Two examples are provided, along with a SIF decoder that translates most (no guarantees!) SIF files into a program that calls the API.
NLPAPI home page