%-------------------------------------------------------------------------------
% UF Sparse Matrix Collection, Tim Davis
% http://www.cise.ufl.edu/research/sparse/matrices/QY/case39
% name: QY/case39
% [Transient stabilty constrained interior pt. optimal power flow, J. Quanyuan]
% id: 2136
% date: 2008
% author: J. Quanyuan
% ed: T. Davis
% fields: name title A b id date author ed kind notes aux
% aux: A b1 b2
% kind: power network problem sequence
%-------------------------------------------------------------------------------
% notes:
% Transient stabilty constrained interior pt. optimal power flow, J. Quanyuan
% Two problem sets from Dr. Jiang Quanyuan from Zhejiang University,         
% Hangzhou, China, March, 2008, used in an electrical power system.          
% Each matrix A is solved sequentially with two right-hand-sides, b1 and     
% b2, one at a time.  In the UF collection, the sequence of all first        
% and second right-hand-sides is in Problem.aux.b2 and Problem.aux.b1.       
% These matrices are symmetric indefinite (x=A\b uses MA57)                  
% Note that the last matrices in the sequence are ill-conditioned.           
%                                                                            
% Transient Stability Constrained Interior Point Optimal Power Flow Program  
%       Version 1.0 -- Developed by Dr. Jiang Quanyuan, March 2008           
%                                                                            
% case39.m - TSOPF converges after 13 iterations                             
%  object    = 2.696268E+04                                                  
%  max_equ   = 5.684342E-14                                                  
%  low_inequ = -1.110223E-16                                                 
%  up_inequ  = None                                                          
%-------------------------------------------------------------------------------
