CORRECTIONS AND CHANGES to MacMPEC 
	==================================

	(scroll down for older changes)

Jan. 11, 2007: 	Added monteiroB.mod from Tereza Monteiro.

Dec. 11, 2005:  Added monteiro.mod from Tereza Monteiro.

Aug.  5, 2005:	Added taxmcp.mod from Miles Light.

Apr. 21, 2005:	Corrected values of global optimum for ex9.1.1 and ex9.1.3
		following a suggestion by Alex Rubinov, University of Ballarat.

Feb.  3, 2005:	Added scale[1-5].mod problems from Gabriel Lopez-Calva

Apr.  8, 2004:	Added various models with mixed complementarity formualtion
		which could not previously be handled by filter:

			bilevel1m, bilevel2m
			gnash1m (same data files as gnash1)

		The new models are mathematically equivalent, but may produce
		different solutions.

Apr.  2, 2004:	Added design-cent-21 and design-cent-31; new problems 
		avoid division by small number in formulation.

Aug. 29, 2003: 	Added pack-rig3* to MacMPEC. These problems correct a 
		mistake in pack-rig2* which makes the latter inconsistent.

Oct. 28, 2002:	Moved library to Argonne from Dundee and added problems

		pack-comp1p-8, pack-comp1p-16, pack-comp1p-32, 
		pack-comp2p-8, pack-comp2p-16, pack-comp2p-32, 

		variations of existing problems where state constraints
		are penalized in the objective.

Aug. 12, 2002: 	Added problems from Fukushima, Luo and Pang:

		flp2, flp4-1, flp4-2, flp4-3 and flp4-4 


Jun. 14, 2002:	Added some small MPECs:

		scholtes5, kth1, kth2 and kth3.


Jun. 3, 2002: 	Added models liswet1-050, liswet1-100 and liswet1-200.
		Inverse QPs from an idea by Stefan Scholtes.


May  29, 2002: 	Corrected constraint nlcs1 in outrata31-4.


Apr. 4, 2002: 	Added 4 problems

		design-cent-2, 		design-cent-2
		design-cent-3,		design-cent-4


Nov. 7, 2001:  	Converted ALL problems to true MPECs, using "complements".

		Added problems jr1, jr2, ralph1, ralph2 (tiny problems).


Apr. 25, 2001: 	Added 19 problems from 
		"Nonconvex Optimization and its Applications", Kluwer.

		ex9.1.(1-10) 
		ex9.2.(1-9) 
		

Feb. 16, 2001: 	Added incidence set identification problem (Zowe et.al.)

		incid-set1-(8,16,32)
		incid-set1c-(8,16,32)
		incid-set2-(8,16,32)
		incid-set2c-(8,16,32)

	      	Added randomly generated QPECs (using Danny Ralph's qpecgen):

		qpec-100-(1-4)
		qpec-200-(1-4)


Feb. 5, 2001: 	Added QPECs related to inverse portfolio optimization

		portfl-i-(1-6)

	      	Added images of water-(net,FL) networks to comments.


Feb. 3, 2001: 	Added new models:

		hakonsen		optimal taxation model
		hs044-i			inverse parameter estimation
		tap-15			traffic assignment problem


Feb. 1, 2001: 	Added tap-09, a traffic assignment problem and a figure 
		for siouxfls.


Oct. 18, 2000: 	Corrected mistakes in bard2m.mod and bard3m.mod.


Sep. 19, 2000: 	Change to rigid packaging problems: introduce a 2nd
	       	slack so that the complementarity constraint is 
	       	bilinear. This affected problems ...

		pack-rig1-(8,16,32)
		pack-rig1c-(8,16,32)
		pack-rig1p-(8,16,32)
		pack-rig2-(8,16,32)
		pack-rig2c-(8,16,32)
		pack-rig2p-(8,16,32)


Sep. 18, 2000: 	Corrected error in outrata33.mod 
	       	(wrong index of s[] in nlcs2-4)


Sep. 7, 2000: 	Corrected a mistake in ampl models of packaging problems.
	      	The element Stiffness matrix was incorrect if the grid was
	      	not orthogonal. This had resulted in different solutions to
	      	Zowe et.al. being found. The affected problems are:
		
		pack-comp1-(8,16,32)
		pack-comp1c-(8,16,32)
		pack-rig1-(8,16,32)
		pack-rig1c-(8,16,32)
		pack-rig1p-(8,16,32)
		pack-rig2-(8,16,32)
		pack-rig2c-(8,16,32)
		pack-rig2p-(8,16,32)


Sep. 7, 2000: 	Added two new compliant obstacle models. 

		pack-comp2-(8,16,32)
		pack-comp2c-(8,16,32)