Category:RPL
This programming language may be used to instruct a computer to perform a task.
| Official website |
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| Execution method: | Interpreted |
|---|---|
| Garbage collected: | Yes |
| Parameter passing methods: | By value |
| Type safety: | Unsafe |
| Type strength: | Weak |
| Lang tag(s): | rpl |
| See Also: |
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RPL (an acronym for Reverse Polish Lisp) is the onboard calculator language for the HP-28, HP 48 and HP-49/50 lines of graphing calculators. It is a stack language (not a Lisp-like language, as its name implies), tightly integrated with the calculator system, with many instructions similar to Forth.
It can natively handle unsigned integers (named binary integers), floating-point numbers (named real numbers), complex numbers, vectors and matrices (named arrays), lists, character strings, and algebraic expressions. The HP-49/50 models can also handle long integers (up to 500 digits) and benefit from several dedicated built-in functions to work with, including testing and generation of prime numbers.
There are actually two languages with the name RPL: User RPL and System RPL. System RPL is used in implementing the operating system, and User RPL is the language users use to write programs on the calculator. System RPL is highly hardware-dependent, whilst User RPL is upwardly compatible.
The language RPL/2 is a recreation of this language for POSIX machines.
Pages in category "RPL"
The following 200 pages are in this category, out of 600 total.
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- Gamma function
- Gapful numbers
- Generate Chess960 starting position
- Generate lower case ASCII alphabet
- Generate random numbers without repeating a value
- Generic swap
- Getting the number of decimal places
- Giuga numbers
- Golden ratio/Convergence
- Gray code
- Greatest common divisor
- Greatest element of a list
- Greatest subsequential sum
- Greedy algorithm for Egyptian fractions
- Guess the number
H
- Hailstone sequence
- Hamming numbers
- Happy numbers
- Harmonic series
- Harshad or Niven series
- Hash from two arrays
- Haversine formula
- Hello world/Graphical
- Hello world/Line printer
- Hello world/Newbie
- Hello world/Standard error
- Hello world/Text
- Heronian triangles
- Hex words
- Hofstadter Figure-Figure sequences
- Hofstadter Q sequence
- Honaker primes
- Horner's rule for polynomial evaluation
- Humble numbers
I
- Iccanobif primes
- Identity matrix
- Idiomatically determine all the characters that can be used for symbols
- Idiomatically determine all the lowercase and uppercase letters
- Idoneal numbers
- Image noise
- Implicit type conversion
- Inconsummate numbers in base 10
- Increment a numerical string
- Infinity
- Input/Output for pairs of numbers
- Integer comparison
- Integer overflow
- Integer sequence
- Interactive programming (repl)
- Introspection
- Inverted syntax
- ISBN13 check digit
- Isqrt (integer square root) of X
- Iterated digits squaring
J
K
L
- Lagrange Interpolation
- Largest difference between adjacent primes
- Largest five adjacent number
- Largest int from concatenated ints
- Largest number divisible by its digits
- Largest palindrome product
- Largest prime factor
- Largest proper divisor of n
- Last Friday of each month
- Last list item
- Law of cosines - triples
- Leap year
- Least common multiple
- Least m such that n! + m is prime
- Left factorials
- Length of an arc between two angles
- Leonardo numbers
- Linear congruential generator
- Literals/Floating point
- Literals/Integer
- Logical operations
- Long literals, with continuations
- Long multiplication
- Long year
- Longest common prefix
- Longest string challenge
- Look-and-say sequence
- Loop over multiple arrays simultaneously
- Loops/Break
- Loops/Do-while
- Loops/Downward for
- Loops/For
- Loops/For with a specified step
- Loops/Foreach
- Loops/Increment loop index within loop body
- Loops/Infinite
- Loops/N plus one half
- Loops/Nested
- Loops/While
- Loops/With multiple ranges
- Loops/Wrong ranges
- Lucas-Lehmer test
- Luhn test of credit card numbers
- Lychrel numbers
M
- Magic 8-ball
- Magic constant
- Magic squares of odd order
- Magnanimous numbers
- Map range
- Matrix multiplication
- Matrix transposition
- Matrix with two diagonals
- Matrix-exponentiation operator
- Maximum difference between adjacent elements of list
- Maximum triangle path sum
- McNuggets problem
- Meissel–Mertens constant
- Menu
- Mersenne primes
- Middle three digits
- Minimum multiple of m where digital sum equals m
- Minimum numbers of three lists
- Minimum primes
- Modular inverse
- Monte Carlo methods
- Morse code
- Mosaic matrix
- Motzkin numbers
- Multifactorial
- Multiplicatively perfect numbers
- Munchausen numbers
- Musical scale
- Mutual recursion
- Möbius function
N
- N'th
- N-grams
- Narcissistic decimal number
- Neighbour primes
- Nested function
- Next highest int from digits
- Next special primes
- Nice primes
- Nim game
- Non-decimal radices/Convert
- Non-decimal radices/Input
- Non-decimal radices/Output
- Nth root
- Numbers divisible by their individual digits, but not by the product of their digits.
- Numbers in base 10 that are palindromic in bases 2, 4, and 16
- Numbers in base-16 representation that cannot be written with decimal digits
- Numbers which are the cube roots of the product of their proper divisors
- Numbers whose count of divisors is prime
- Numbers with equal rises and falls
- Numbers with prime digits whose sum is 13
- Numbers with same digit set in base 10 and base 16
O
P
- Padovan sequence
- Pairs with common factors
- Palindrome dates
- Palindrome detection
- Palindromic primes
- Pandigital prime
- Pangram checker
- Parsing/RPN calculator algorithm
- Parsing/Shunting-yard algorithm
- Partial function application
- Pascal matrix generation
- Pascal's triangle
- Pell numbers
- Penholodigital squares
- Penta-power prime seeds
- Perfect numbers
- Permutations with some identical elements
- Pernicious numbers
- Pi
- Pick random element
- Piprimes
- Plot coordinate pairs
- Poker hand analyser
- Polynomial derivative
- Polynomial long division
- Polynomial regression
- Population count
- Positive decimal integers with the digit 1 occurring exactly twice
- Power set