Period length

Period length can stand for:

• Period (cryptology) , number of characters after which an alphabet used for encryption is repeated
• Period (physics) , in the case of regularly repeating physical phenomena, the smallest temporal or spatial interval after which the process is repeated: period duration , wavelength
• Length of a partial sequence of a sequence until this partial sequence is repeated, see periodic sequence . A special case of this is the length of the period of the decimal fraction expansion of a fraction.

This is a disambiguation page for differentiating between several terms identified with the same word.