2.5. About Structures

Scalar - 0 dimensional array
Vector - 1 dimensional array
Matrix - 2 dimensional array
Tensor - 3 dimensional array

2.5.1. Scalar

Scalar - 0 dimensional array

Code 2.3. Scalar

2.5.2. Vector

Vector - 1 dimensional array

Code 2.4. Vector

[1, 2, 3]

2.5.3. Matrix

Matrix - 2 dimensional array

Code 2.5. Matrix

[[1, 2, 3],
 [4, 5, 6],
 [7, 8, 9]]

2.5.4. Tensor

Tensor - 3 dimensional array

Code 2.6. Tensor

[[[1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]],

 [[1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]]]