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IsZeroCol, IsZeroRow

test whether a column(row) is zero

Syntax 
IsZeroCol(M: MAT, N: INT): BOOL
IsZeroRow(M: MAT, N: INT): BOOL

Description
This function tests whether all entries in the N -th column(row) of M are zero.

Example 
/**/  IsZeroRow(matrix([[1,0,0], [0,0,0]]), 1);
false
/**/  IsZeroCol(matrix([[1,0,0], [0,0,0]]), 2);
true

See Also