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So, an integer variable is a scalar value. This means that you can have any integer inside of it that you want. Scalar generally means one-dimensional, so it can be any number on that dimension, like the number line.
A two-dimensional matrix with both dimensions equal to zero appears in the MATLABÂ® application as []. The expression A = [] assigns a 0-by-0 empty matrix to A. Scalars. A scalar is 1-by-1 and appears in MATLAB as a single real or complex number (e.g., 7, 583.62, -3.51, 5.46097e-14, 83+4i).