Rows are delimited by a semicolon and values by a space. Call the mat() function with the following string to create a matrix:

A = np.mat('1 2 3; 4 5 6; 7 8 9')
print("Creation from string", A)

The matrix output should be the following matrix:

Creation from string [[1 2 3]
 [4 5 6]
 [7 8 9]]

Transpose the matrix with the T attribute as follows:

print("transpose A", A.T)

The following is the transposed matrix:

transpose A [[1 4 7]
 [2 5 8]
 [3 6 9]]

The matrix can be inverted with the I attribute as follows (see https://www.khanacademy.org/math/precalculus/precalc-matrices/inverting_matrices/v/inverse-matrix-part-1):

print("Inverse A", A.I)

The inverse matrix is printed as follows (be warned that this is a O(n3) operation, meaning that it takes...