Matrices and Linear Algebra

.T transposes a matrix (swaps rows and columns). @ (or np.matmul) multiplies matrices the mathematical way; * multiplies element by element. np.linalg has det, inv and solve.

Examplepython

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Quick check

What is the difference between `A * B` and `A @ B`?

No difference* is element by element, @ is the matrix product@ is element by element, * is the matrix product

Your turn: write the code

Print the matrix product of A and B.

Finish the quick check (and any code exercise) to complete this lesson, or mark it done yourself.

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