trans·pose 
(trăns-pōz)
(trăns-pōz)v. trans·posed, trans·pos·ing, trans·pos·es
v.tr.
1. To reverse or transfer the order or place of; interchange. See Synonyms at reverse.
2. Mathematics To move (a term) from one side of an algebraic equation to the other side, reversing its sign to maintain equality.
3. Music To write or perform (a composition) in a key other than the original or given key.
4. To render into another language.
5. To alter in form or nature; transform: a diary that was transposed into a novel.
v.intr.
1. Music To write or perform music in a different key.
2. To admit of being transposed.
n. (trănspōz′)
Mathematics
Mathematics
A matrix formed by interchanging the rows and columns of a given matrix.
[Middle English transposen, to transform, from Old French transposer, alteration (influenced by poser, to put, place) of Latin trānspōnere, to transfer : trāns-, trans- + pōnere, to place; see apo- in the Appendix of Indo-European roots.]
trans·posa·ble adj.