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Matrix
Identity 3x3 matrix: eye(3)
A 3x3 matrix: A = [ 1, 1, 2; 3, 5, 8; 13, 21, 34 ]
A random matrix w. coeffs. between 0 and 1: B = rand (3, 2)
To display B: B
Transpose: B'
Matrix arithmetics: 2*A, A*B, A'*A
Solve Linear System Ax=b: A\b

Integrating Differential Equations
To be continued.