Square: matB²
To find the square of mat B, press 
, then 
, 
, 
for mat B, 
, and 
. The rows are 16, 169, 227; then 39, 247, 276; then 12, 88, 100. This is mat B × mat B: a matrix product, not each element squared.
To find the square of mat B, press , then , , for mat B, , and . The rows are 16, 169, 227; then 39, 247, 276; then 12, 88, 100. This is mat B × mat B: a matrix product, not each element squared.
▶ Watch this step in the video (1:52:06)