backtrack vs transpose

backtrack

verb
  • To retrace one's steps. 

  • To exercise a racehorse around the racetrack in the opposite direction to that in which races are run. 

  • To taxi down an active runway in the opposite direction to that being used for takeoff. 

  • To repeat or review work already done. 

noun
  • the act of backtracking 

transpose

verb
  • To reach a position that may also be obtained from a different move order. 

  • To rewrite or perform (a piece) in another key. 

  • To rearrange elements in a matrix, by interchanging their respective row and column positional indicators. 

  • To give force to a directive by passing appropriate implementation measures. 

  • To reverse or change the order of (two or more things); to swap or interchange. 

  • To move (a term) from one side of an algebraic equation to the other, reversing the sign of the term. 

adj
  • A matrix with the characteristic of having been transposed from a given matrix. 

noun
  • The process of rearranging elements in a matrix, by interchanging their respective row and column positional indicators. 

  • The resulting matrix, derived from performing a transpose operation on a given matrix. 

How often have the words backtrack and transpose occurred in a corpus of books? (source: Google Ngram Viewer )