How to define a constant in lisp?

In LISP, constants are variables that never change their values during program execution. Constants are declared using the defconstant construct.

What is Pi in Lisp?

; PI (Processes of Induction) LISP code.

What does cond do in Lisp?

The cond construct in LISP is most commonly used to permit branching. Each clause within the cond statement consists of a conditional test and an action to be performed.

What is Cond Lisp?

The cond construct in LISP is most commonly used to permit branching. Syntax for cond is − (cond (test1 action1) (test2 action2) ( testn actionn)) Each clause within the cond statement consists of a conditional test and an action to be performed.

What does Setf do in LISP?

setf is actually a macro that examines an access form and produces a call to the corresponding update function. Given the existence of setf in Common Lisp, it is not necessary to have setq, rplaca, and set; they are redundant. They are retained in Common Lisp because of their historical importance in Lisp.

What is SETQ?

Sets the value of a symbol or symbols to associated expressions. (setq sym expr [sym expr]…) This is the basic assignment function in AutoLISP. The setq function can assign multiple symbols in one call to the function.

What is Setf Lisp?

Do you load your lisp only once or always?

Translate 04-03-2018 05:31 AM When you appload a lisp it asks you if you always want to load it or just once. I usually only load always if it’s something I constantly use that and I like to make sure a lisp works without problems before I do that too. I have a lisp that I was only loading once, but now I want to load it always.

What makes Lisp so special?

Part of what makes Lisp distinctive is that it is designed to evolve. As new abstractions become popular (object-oriented programming, for example), it always turns out to be easy to implement them in Lisp. Like DNA, such a language does not go out of style.

What is the Common Lisp rail scheduling system?

SISCOG’s Common Lisp rail scheduling system moves millions of passengers across Europe every day.