Matrix Addition:
Imagine two friends, Alice and Bob, each having a matrix. To combine their information, we add the corresponding elements from each matrix. The result is a new matrix, where each element is the sum of the corresponding elements from Alice's and Bob's matrices.
Example:
Alice's matrix (A):
| 11 12 |
| 21 22 |
Bob's matrix (B):
| 11 12 |
| 21 | 22 |
Their joint matrix (C):
| 22 24 |
| 42 | 44 |
As you can see, every element in C is the sum of the corresponding elements in A and B.
Matrix Subtraction:
Subtracting matrices is like having a competition between Alice's and Bob's matrices. Instead of adding, we subtract related elements. The result is a new matrix that shows the differences between Alice's and Bob's information.
Example:
Suppose Alice has more apples than Bob:
| 10 8 |
| 5 3 |
But Bob has more oranges:
| 5 2 |
| 8 7 |
Their difference matrix (C):
| 5 6 |
| -3 -4 |
Each element in C shows the difference between the corresponding elements of Alice and Bob.
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