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more concise matrix (thanks march)

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edited Aug 2, 2016 at 18:54

If all of the columns are part of one table, try

matrix = Table[RandomInteger[RandomInteger[{0, 1}], {i, 8}, {j, 3}];

For[i = 1, i <= Length[matrix], i++, 
    If[matrix[[i, 1]] == 0 && matrix[[i, 3]] == 1, Print[i]]];

If all of the columns are part of one table, try

matrix = Table[RandomInteger[{0, 1}], {i, 8}, {j, 3}];

For[i = 1, i <= Length[matrix], i++, 
    If[matrix[[i, 1]] == 0 && matrix[[i, 3]] == 1, Print[i]]];

If all of the columns are part of one table, try

matrix = RandomInteger[{0, 1}, {8, 3}];

For[i = 1, i <= Length[matrix], i++, 
    If[matrix[[i, 1]] == 0 && matrix[[i, 3]] == 1, Print[i]]];

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created Aug 2, 2016 at 17:54

J_Nat

If all of the columns are part of one table, try

matrix = Table[RandomInteger[{0, 1}], {i, 8}, {j, 3}];

For[i = 1, i <= Length[matrix], i++, 
    If[matrix[[i, 1]] == 0 && matrix[[i, 3]] == 1, Print[i]]];