Operators

check notes below for table interpretation

Nulary Functions (Nilads)

Unary Functions (Monads)

Assuming a as the top of the stack

	Fraction	Character	List
↑	a+1	next char in codebase	Map ↑ a
↓	a-1	prev char in codebase	Map ↓ a
!	Factorial of a	Factorial of c(a)	Map ! a

Binary Functions (Dyads)

Assuming b as the top of the stack, a below b

	Frac×Frac	Frac×Chr	Chr×Frac	Chr×Chr	Frac×List	List×Frac	Chr×List	List×Chr	List×List
+	a+b	u(a+cb)	u(ca+b)	u(ca+cb)	M +a b	M +b a	M +ca b	M +cb a	M + zip(a,b)

Notes:

• c(char) is the value of char in the codebase; ca means c(a)
• u(n) is the char with codebase n; ua means u(a)
• Fraction x rounds to ⌊x⌋ when needed as int
• Map op/M op means map operation op over elements of String/List (recursively with lists of lists)
• unless stated otherwise,
  • zip/zipWith cycle the smaller list
  • string operators consider a circular codebase; eg. i=(i+1)%256