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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, 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 ( coins or cards) switch places with one another faster than physically possible.
• Transpose, a database of academic journal preprinting policies maintained by ASAPbio

• Disambiguation pages