Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 167

...row(
(row multiplication) returns a matrix. It multiplies
row(
...
.
row
... row(value,matrix,row)
...row+(
(row multiplication and addition) returns a matrix. It multiplies
... row+(
to , and stores the results in
rowB
row+(value,matrix,rowA,rowB)
...
row
.
rowB
of by and stores the results in
matrix value
of
rowA matrix
Chapter 10: Matrices
by , adds it
value
160