Illustration of variable scope, MATLAB in Engineering

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Illustration of Variable scope:

Running this function does not add any of variables to the workspace, as elaborated:

>> clear

>> who

>> disp(mysum([5 9 1]))

>> who

The variables that are also defined in the Command Window cannot be used in a function.

Though, scripts (as opposite to the functions) do interact with the variables which are defined in the Command Window. For illustration, the function is changed to be a script mysummfile.

731_Variable Scope1.png

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