Definition: A binary operation that takes a pair of matrices. The number of columns in the first matrix must be equal to the number of rows in the second matrix.
Formal Definition: If A is an n × m matrix and B is an m × p matrix, their product AB is an n × p matrix in which ABij = Σk=1m (Aik × Bkj).
If you have suggestions, corrections, or comments, please get in touch with Paul Black.
Entry modified 25 March 2016.
HTML page formatted Wed Mar 13 12:42:46 2019.
Cite this as:
Vreda Pieterse, "matrix multiplication", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed. 25 March 2016. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/matrixMultiply.html