2 freeglobals - free memory used for values of global variables
11 This function frees the memory used for the values of all global
12 and not unscoped static variables by assigning null values.
13 The oldvalue (.) is not freed by this function.
16 > global a = 1, b = list(2,3,4), c = mat[3]
47 free, freestatics, freeredc