Memory Variable Handling
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 Reference Item| Description
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 ACCEPT        | Place keyboard input into a memory variable
 CLEAR ALL     | Close files and release public and private variables
 CLEAR MEMORY  | Release all public and private variables
 DECLARE       | Create and initialize private memory variables and arrays
 INPUT         | Enter the result of an expression into a variable
 LOCAL         | Declare and initialize local variables and arrays
 MEMVAR        | Declare private and public variable names
 MEMVARBLOCK() | Return a set-get code block for a given memory variable
 PARAMETERS    | Create private parameter variables
 PRIVATE       | Create and initialize private memory variables and arrays
 PUBLIC        | Create and initialize public memory variables and arrays
 STATIC        | Declare and initialize static variables and arrays
 RELEASE       | Delete public and private memory variables
 RESTORE       | Retrieve memory variables from a memory (.mem) file
 SAVE          | Save variables to a memory (.mem) file
 STORE         | Assign a value to one or more variables
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