Numerical Variables, Vectors and Matrices

4.1 Variables

The concept of variable, like the concept of function, is essential when working with mathematical software. Obviously, the theoretical concept of a mathematical variable is fixed and independent of the software package, but how to implement and manage variables is very characteristic of each particular program. MATLAB allows you to define and manage variables, and store them in files, in a very simple way.

When extensive calculations are performed, it is convenient to give names to intermediate results. Each intermediate result is assigned to a variable to make it easier to use. ...

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