Steps 
Key Sequence 
Screens 
1. Go to matrix editor 
2^{nd} then x^{ 1} key (for MATRIX) 

Note: The instruction above is for the TI83 Plus. For the TI83, the
MATRIX key is next to the MATH key – you need only press the MATRIX key. 

twice (for EDIT) 


1 (for the Matrix [A]) 

2. Enter the number of rows and columns 
Enter the number of rows, then ENTER 


Enter the number of columns, then ENTER 

3. Enter data 
type in number, then ENTER 

Note: Press enter after each number in the data. The numbers are entered
left to right from the first row down to the last row. 

4. To enter data into another matrix 
Goto step 1 

5. To exit the editor 
2^{nd} then MODE (for QUIT) 
