Time for action – calculating the determinant of a matrix

To calculate the determinant of a matrix, follow these steps:

  1. Create the matrix:
    A = np.mat("3 4;5 6")
print("A
", A)

    The matrix we created appears as follows:

    A
[[ 3.  4.]
 [ 5.  6.]]
  2. Compute the determinant with the det() function:
    print("Determinant", np.linalg.det(A))

    The determinant appears as follows:

    Determinant -2.0

What just happened?

We calculated the determinant of a matrix with the det() function from the numpy.linalg module (see determinant.py):

from __future__ import print_function
import numpy as np

A = np.mat("3 4;5 6")
print("A
", A)

print("Determinant", np.linalg.det(A))
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