2. STEPS
1. Press [MODE]
2. Press 6 (MATRIX)
3. Press 1 to select Matrix A
4. Press the dimension you want by selecting the number
5. Fill in the entries
3. NB: if you have more than one matrix
6. Press [SHIFT] and 4
7. Press 2 (Data)
8. Press 2 again for another matrix B
9. Press [ON]
10. Press [SHIFT] and then 4
7. Press 3 (if MAT A)
Use the operation [ + ]
Press [SHIFT] and press 4 (if MAT B)
You should see [ MAT A + MAT B ].
Press [=]
NB: The same process applies to - and ×.