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Variables.h

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00001 /* OOQP                                                               *
00002  * Authors: E. Michael Gertz, Stephen J. Wright                       *
00003  * (C) 2001 University of Chicago. See Copyright Notification in OOQP */
00004 
00005 #ifndef VARIABLES_H
00006 #define VARIABLES_H
00007 
00013 class LinearSystem;
00014 class Residuals;
00015 class Data;
00016 class Solver;
00023 class Variables
00024 {
00025 public:
00027   int nComplementaryVariables;
00028   
00032   virtual double mu() = 0;
00033 
00036   virtual double mustep(Variables *step, double alpha) = 0;
00037 
00039   virtual void negate() = 0;
00040 
00043   virtual void saxpy( Variables *b, double alpha) = 0;
00044   
00052   virtual double stepbound( Variables *b ) = 0;
00053 
00077   virtual double findBlocking( Variables * step, 
00078                                double & primalValue,
00079                                double & primalStep,
00080                                double & dualValue,
00081                                double & dualStep,
00082                                int& firstOrSecond ) = 0;
00083 
00086   virtual void interiorPoint( double alpha, double beta ) = 0;
00087 
00089   virtual void shiftBoundVariables( double alpha, double beta ) = 0;
00090 
00093   virtual double violation() = 0;
00094 
00096   virtual void print();
00097 
00099   virtual void copy(Variables *b) = 0;
00100 
00102   virtual double onenorm() = 0;
00103 
00105   virtual double infnorm() = 0;
00106 
00107   virtual ~Variables() {};
00108 };
00109 
00110 #endif
00111 
00112 

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