Reference: taxiNorm
taxiNorm(v) returns the taxi (Manhattan) norm of the vector v = ❨a1, a2, ..., an❩, i.e. the real number taxiNorm(v) = |a1| + |a2| + ... + |an|.
taxiNorm(v) returns the taxi (Manhattan) norm of the vector v = ❨a1, a2, ..., an❩, i.e. the real number taxiNorm(v) = |a1| + |a2| + ... + |an|.