thanks Global variables can be a tricky concept at first and are a true test of

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Global variables can be a tricky concept at first and are a true test of your knowledge of the scope of a variable (which variables a function can see and what they cannot see). Assume that you have the following two functions in your working directory: function y = func1 (x) global G; % G has been declared as a global variable G = 5*x; y = G + 2*x; end function y = func2 (x) G = 50; % G is NOT a global variable, it is local to func2 y = G + 3*x; The following commands are entered at the MATLAB prompt: clear global G G = 5; a = func1(G + 2); b = func2 (G + 2) ; a = b b = G G =

Explanation / Answer

a = 49

b = 161

G=35

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