The conversation between human and AI assistant.
[|Human|] Compute the sum of two matrices.
[|AI|] Sure! To find the sum of two matrices A and B, you need to add the corresponding elements of both matrices. 

Here's the calculation of the sum of Matrix A and Matrix B:

[[1 + 5, 2 + 6],
 [3 + 7, 4 + 8]]

So, the sum of Matrix A and Matrix B is:

[[6, 8],
 [10, 12]]
[|Human|] 
Compute the sum of two matrices.