MathGroup Archive 1996

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Inverse????


A matrix a={{0,0,1},{0,0,1},{1,1,1}} which is singular in Z_2, but  
Inverse commands gives the "result": 


Inverse[a,Modulus->2]=
{{0, 1, 1}, {1, 1, 0}, {1, 0, 0}}. 


Is anything wrong ?



Houshou  



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