Chapter 4

Chapter 4 Code Examples

MATLAB Matrix Examples

Matrices from Equations 4.1 and 4.2

A = [1,2,3;4,5,6]
B = [10,11,12;13,14,15]

Matrices from Equations 4.7 and 4.8 

A = [1,1,3;2,1,0]
B = [1,2;0,2;2,1]

Python Matrix Examples

Matrices from Equations 4.1 and 4.2

A = np.array([[1,2,3],[4,5,6]])
B = n

Matrices from Equations 4.7 and 4.8

A = np.array([[1,1,3],[2,1,0]])
B = np.array([[1,2],[0,2],[2,1]])

Exercises

Given matrices:
A=

    \[\begin{bmatrix}1 & 2 & 3\\ 4 & 5 & 6\end{bmatrix}\]


B=

    \[\begin{bmatrix}1 & 2\\ 3 & 4\end{bmatrix}\]


C=

    \[\begin{bmatrix}1 & 2\\3 & 4\\5 & 6\end{bmatrix}\]


D=

    \[\begin{bmatrix}7 & 8 & 9\\10 & 11 & 12\end{bmatrix}\]

Calculate the following:

  1. A – C’
  2. C’ + 3D
  3. BA
  4. CB
  5. B^4
  6. AA’
  7. D’D
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