--- Stage 1: Matrix template class definition, constructor, operator<< ---
Matrix 3x3 of char from {{'a', 'b', 'c'}, {'d', 'e', 'f'}, {'g', 'h', 'i'}}:
---------
a b c 
d e f 
g h i 
---------
Matrix 1x2 of int from {{1001, 1002}}:
---------
1001 1002 
---------
Matrix 3x1 of float from {{1.1f}, {2.2f}, {3.3f}}:
---------
1.1 
2.2 
3.3 
---------
Matrix int 3x3 from {{1, 2, 3}, {4, 5, 6, 7}, {8, 9}, {2}}:
---------
1 2 3 
4 5 6 
8 9 0 
---------
Matrix char 3x2 from {{'a', 'b', 'c'}, {'d'}}:
---------
a b 
d   
    
---------

--- Stage 2: Matrix operator[], operator+, operator -, transpose() ---
Matrix m1:
---------
1 2 10 
4 5 2 
---------
Element of index (0, 2) of Matrix m1: 10
Matrix m1 after change:
---------
1 2 3 
4 5 2 
---------
Element of index (0, 2) of Matrix m1 after change: 3
Matrix m2:
---------
1 0 -1 
0 -1 2 
---------
Element of index (1, 2) of Matrix m2: 2
Operator+ (m1+m2):
------------------------------
1 2 3       1 0 -1       2 2 2 
4 5 2   +   0 -1 2   =   4 4 4 
Operator- (m1-m2):
------------------------------
1 2 3       1 0 -1       0 2 4 
4 5 2   -   0 -1 2   =   4 6 0 
Transpose of m_result matrix:
---------
0 4 
2 6 
4 0 
---------

--- Stage 3: SquareMatrix derived class, calculateDeterminant(), getDet(), identity() ---
Square matrix sq_3: 
---------
2 4 1 
4 0 8 
6 4 2 
---------
Matrix sq_3 determinant: 112
Matrix sq_3 transpose: 
---------
2 4 6 
4 0 4 
1 8 2 
---------
Square matrix 3x3 identity: 
---------
1 0 0 
0 1 0 
0 0 1 

--- Stage 4: SquareMatrix specialization for 2x2 matrices ---
Calculating determinant in 2x2 square matrix class specialization
Square matrix sq_2: 
---------
1 2 
4 5 
---------
Matrix sq_2 determinant: -3
Matrix sq_2 transpose: 
---------
1 4 
2 5 
---------
Square matrix 2x2 identity: 
---------
1 0 
0 1