Perform matrix operations step by step with explanations and visual analysis.
A matrix is a rectangular array of numbers, symbols, or expressions arranged in rows and columns. Matrices are used in various fields including linear algebra, computer graphics, and data analysis.
Can I multiply any two matrices?
No, the number of columns in the first matrix must equal the number of rows in the second matrix.
What is the identity matrix?
An identity matrix is a square matrix with 1s on the diagonal and 0s elsewhere.