1. Parity-check matrix

 000 00000 110 10000 011 01000 100 00100 010 00010 001 00001 101 11000 111 10001

so in the left column are all syndromes, how to calculate them
thanks

2. Re: Parity-check matrix

Ok i find it
if there is matrix G = I|A then you should find matrix H = AT|I
and multiply every row(second column) with matrix H