Polyphase Sequence

In mathematics, a polyphase sequence is a sequence whose terms are complex roots of unity:

where xn is an integer.

Polyphase sequences is an important class of sequences and play important roles in synchronizing sequence design.

Famous quotes containing the word sequence:

    We have defined a story as a narrative of events arranged in their time-sequence. A plot is also a narrative of events, the emphasis falling on causality. “The king died and then the queen died” is a story. “The king died, and then the queen died of grief” is a plot. The time sequence is preserved, but the sense of causality overshadows it.
    —E.M. (Edward Morgan)