text: Multiplying '"`UNIQ--postMath-000253D6-QINU`"' by a linear phase '"`UNIQ--postMath-000253D7-QINU`"' for some integer m corresponds to a circular shift of the output '"`UNIQ--postMath-000253D8-QINU`"': '"`UNIQ--postMath-000253D9-QINU`"' is replaced by '"`UNIQ--postMath-000253DA-QINU`"', where the subscript is interpreted modulo N (i.e., periodically).