"Digits" var is safely recovered?

Question:"Digits" var is safely recovered?

Posted: icegood 290 Product: Maple

January 09 2012

Digits:=20;

p:=proc() global Digits; Digits:=Digits+5;end proc;

Digits;

Obtained 20 at the end. Which variables has also such property of "recoveriability" after proc call?

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