5 practice sets · Page 1 of 1
Choose correct statement about arg1 of setq syntax.
It is a list
It is a symbol in which value is stored
It is an arithmetic operator
It is a primitive
Correct Answer: B — It is a symbol in which value is stored
Explanation:
In (setq arg1 arg2), the arg1 is like a variable in which value is stored. It can be a symbol. The value of arg2 got stored in it.
What can be used as an argument for a primitive?
Atoms and List
Another LISP programs
A user-defined function
Atoms, List, Another LISP program, Used-defined function
Correct Answer: D — Atoms, List, Another LISP program, Used-defined function
Explanation:
These all can be used as an argument for a primitive. Arguments depend on the type of primitive used. Example for arithmetic operators: numbers are used. For list functions: lists are used.
What is the notation used for writing LISP Syntax?
Prefix
Infix
Postfix
Different notations for different LISP Primitives
Correct Answer: A — Prefix
Explanation:
Prefix notation is always used in LISP Syntax. It doesn't change for different LISP Primitives. That is infix and postfix notations are not used.
In the syntax (setf arg1 arg2), what is arg2?
A variable
A value to be set on arg1
It is the definition of arg1
A formula
Correct Answer: B — A value to be set on arg1
Explanation:
In general, the arg2 or argument2 is the value that is to be set on arg1. It can be a number, a list, a symbol, a formula, etc.
In the syntax (setf arg1 arg2), what is arg1?
Value to be set
Variable on which value is set
Set of lists
Set of elements forming a list
Correct Answer: B — Variable on which value is set
Explanation:
The arg1 or argument 1 is like a variable in which value is stored. The arg1 can be anything like a symbol, a list or maybe the first element of a list, etc.
