Wiktionary
transition matrix
a. (context mathematics stochastic processes of a Markov chain English) a square matrix whose rows consist of nonnegative real numbers, with each row summing to . Used to describe the transitions of a Markov chain; its element in the 'th row and 'th column describes the probability of moving from state to state in one time step.
Usage examples of "transition matrix".
This was the transition matrix, all right, and she shifted her grip on the wand to tug them into their new position.