P

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Padovan n-step number sequences

Palindrome dates

Palindrome detection

Palindrome pairs

Palindromic gapful numbers

Palindromic primes

Palindromic primes in base 16

Pangram checker

Parallel brute force

Parallel calculations

Parsing

Partial function application

Partition an integer x into n primes

Partition function P

Pascal's triangle

Pascal matrix generation

Pathological floating point problems

Peano curve

Pell's equation

Penrose tiling

Pentagram

Percentage difference between images

Percolation

Perfect numbers

Perfect shuffle

Perfect totient numbers

Perlin noise

Permutation test

Permutations

Permutations by swapping

Permutations with repetitions

Permutations with some identical elements

Pernicious numbers

Phrase reversals

Pi

Pick random element

Pierpont primes

Pig the dice game

Piprimes

Pisano period

Plasma effect

Playfair cipher

Playing cards

Plot coordinate pairs

Pointers and references

Polymorphic copy

Polymorphism

Polynomial long division

Polynomial regression

Polynomial synthetic division

Population count

Positive decimal integers with the digit 1 occurring exactly twice

Power set

Powerful numbers

Practical numbers

Price fraction

Primality by trial division

Primality by Wilson's theorem

Prime conspiracy

Prime decomposition

Prime numbers p which sum of prime numbers less or equal to p is prime

Prime numbers which contain 123

Primes - allocate descendants to their ancestors

Primes which contain only one odd digit

Primes whose first and last number is 3

Primes whose sum of digits is 25

Primes with digits in nondecreasing order

Primorial numbers

Priority queue

Probabilistic choice

Problem of Apollonius

Program name

Program termination

Proper divisors

Pseudo-random numbers

Pseudorandom number generator image

Pythagoras tree

Pythagorean quadruples

Pythagorean triples

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