title: Transposition
text: # Transposition
  
  Transposition may refer to:
  
  ## Logic and mathematics
  
  * Transposition (mathematics), a permutation which exchanges two elements and keeps all others fixed
  * Transposition, producing the transpose of a matrix $A^T,$ which is computed by swapping columns for rows in the matrix A
  * Transpose of a linear map
  * Transposition (logic), a rule of replacement in philosophical logic
  * Transpose relation, another name for converse relation
  
  ## Games
  
  * Transposition (chess), different moves or a different move order leading to the same position, especially during the openings
  * Transposition table, used in computer games to speed up the search of the game tree
  
  ## Biology
  
  * Transposition (birth defect), a group of congenital defects involving an abnormal spatial arrangement of tissue or organ
     * Transposition of the great vessels, cardiac transposition, a congenital heart defect with malformation of any of the major vessels
     * Transposition of teeth
     * Penoscrotal transposition
  * Transposition (horizontal gene transfer), the transfer of genetic material between organisms other than by vertical gene transfer
  * Transposons, or genetic transposition, a mutation in which a chromosomal segment is transferred to a new position on the same or another chromosome
  
  ## Other uses
  
  * Transposition (law), the incorporation of the provisions of a European Union directive into a Member State's domestic law
  * Transposition (music), moving a note or collection of notes up or down in pitch by a constant number of semitones
  * Transposition (transmission lines), periodic swapping of positions of the conductors of a transmission line
  * Transposition cipher, an elementary cryptographic operation
  * Transposition, docking, and extraction an orbital maneuver performed on the Apollo lunar missions
  * Transposition, sleight of hand (magic), a performer appears to make two different objects ([usually] coins or cards) switch places with one another faster than physically possible.
  * Transpose, a database of academic journal preprinting policies maintained by ASAPbio
  