ƚ F ).  &M` & MathType Z)Times New Romanww 0wf-2 111222NNNB~dTimes New Romanww 0wf-2 iijiijiijB~*PTimes New Romanww 0wf-2 xx,xx,...,xxB ~0Symbol ww 0wf-2 ===J[ )&GMathTypeUU;DSMT5WinAllBasicCodePagesTimes New RomanSymbolCourier NewMT Extra!oED/APu!APAE%B_AC_AE*_HA@AHA*_D_E_E_A  )#x i 1  ==x i 1 j 1  ,x i 2  ==x i 2 j 2  ,...,x i N  ==x i N j N  *# & "Systemf !-