Quantum Computing, Qiskit, Linear Algebra, Mathematics, Python.
rectangular grid. Here is a 2 by 2 matrix: Ai,j refers to the element in row i and column j of matrix A (all indices are 0-based). In the above example, A0,1=2. An n×m matrix will have n rows and m columns, like so: A 1×1 matrix is equivalent to a scalar: Quantum computing uses complex-valued