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A.1.7 Accessing Global Variables in Oct-Files

Global variables allow variables in the global scope to be accessed. Global variables can easily be accessed with oct-files using the support functions get_global_value and set_global_value. get_global_value takes two arguments, the first is a string representing the variable name to obtain. The second argument is a boolean argument specifying what to do in the case that no global variable of the desired name is found. An example of the use of these two functions is

An example of its use is

 
global a b
b = 10;
globaldemo ("b")
⇒ 10
globaldemo ("c")
⇒ "Global variable not found"
num2str (a)
⇒ 42

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