Texas Instruments TI-73 Software Manual page 34

randM( 6: Random Matrix
Returns a rows × columns random matrix of integers ‚ L 9 and  9.
The seed value stored to the function controls the values
rand
(Chapter 2 in the TI-73 Guidebook at education.ti.com/guides).
randM( rows,columns )
augment( 7: Append Matrices
Appends matrixnameA to matrixnameB as new columns.
matrixnameA and matrixnameB both must have the same number
of rows.
matrixnameA,matrixnameB
augment( )
Matrices for the TI-73 Page 34