# P - [Padovan n-step number sequences](/sidef-lang/programming_tasks/p/padovan_n-step_number_sequences.md) - [Palindrome dates](/sidef-lang/programming_tasks/p/palindrome_dates.md) - [Palindrome detection](/sidef-lang/programming_tasks/p/palindrome_detection.md) - [Palindrome pairs](/sidef-lang/programming_tasks/p/palindrome_pairs.md) - [Palindromic gapful numbers](/sidef-lang/programming_tasks/p/palindromic_gapful_numbers.md) - [Palindromic primes](/sidef-lang/programming_tasks/p/palindromic_primes.md) - [Palindromic primes in base 16](/sidef-lang/programming_tasks/p/palindromic_primes_in_base_16.md) - [Pandigital prime](/sidef-lang/programming_tasks/p/pandigital_prime.md) - [Pangram checker](/sidef-lang/programming_tasks/p/pangram_checker.md) - [Parallel brute force](/sidef-lang/programming_tasks/p/parallel_brute_force.md) - [Parallel calculations](/sidef-lang/programming_tasks/p/parallel_calculations.md) - [Parsing](/sidef-lang/programming_tasks/p/parsing.md) - [RPN calculator algorithm](/sidef-lang/programming_tasks/p/parsing/rpn_calculator_algorithm.md) - [RPN to infix conversion](/sidef-lang/programming_tasks/p/parsing/rpn_to_infix_conversion.md) - [Shunting-yard algorithm](/sidef-lang/programming_tasks/p/parsing/shunting-yard_algorithm.md) - [Partial function application](/sidef-lang/programming_tasks/p/partial_function_application.md) - [Partition an integer x into n primes](/sidef-lang/programming_tasks/p/partition_an_integer_x_into_n_primes.md) - [Partition function P](/sidef-lang/programming_tasks/p/partition_function_p.md) - [Pascal's triangle](/sidef-lang/programming_tasks/p/pascals_triangle.md) - [Puzzle](/sidef-lang/programming_tasks/p/pascals_triangle/puzzle.md) - [Pascal matrix generation](/sidef-lang/programming_tasks/p/pascal_matrix_generation.md) - [Pathological floating point problems](/sidef-lang/programming_tasks/p/pathological_floating_point_problems.md) - [Peano curve](/sidef-lang/programming_tasks/p/peano_curve.md) - [Pell's equation](/sidef-lang/programming_tasks/p/pells_equation.md) - [Pell numbers](/sidef-lang/programming_tasks/p/pell_numbers.md) - [Penrose tiling](/sidef-lang/programming_tasks/p/penrose_tiling.md) - [Pentagram](/sidef-lang/programming_tasks/p/pentagram.md) - [Percentage difference between images](/sidef-lang/programming_tasks/p/percentage_difference_between_images.md) - [Percolation](/sidef-lang/programming_tasks/p/percolation.md) - [Mean run density](/sidef-lang/programming_tasks/p/percolation/mean_run_density.md) - [Site percolation](/sidef-lang/programming_tasks/p/percolation/site_percolation.md) - [Perfect numbers](/sidef-lang/programming_tasks/p/perfect_numbers.md) - [Perfect shuffle](/sidef-lang/programming_tasks/p/perfect_shuffle.md) - [Perfect totient numbers](/sidef-lang/programming_tasks/p/perfect_totient_numbers.md) - [Perlin noise](/sidef-lang/programming_tasks/p/perlin_noise.md) - [Permutation test](/sidef-lang/programming_tasks/p/permutation_test.md) - [Permutations](/sidef-lang/programming_tasks/p/permutations.md) - [Permutations by swapping](/sidef-lang/programming_tasks/p/permutations_by_swapping.md) - [Permutations with repetitions](/sidef-lang/programming_tasks/p/permutations_with_repetitions.md) - [Permutations with some identical elements](/sidef-lang/programming_tasks/p/permutations_with_some_identical_elements.md) - [Pernicious numbers](/sidef-lang/programming_tasks/p/pernicious_numbers.md) - [Phrase reversals](/sidef-lang/programming_tasks/p/phrase_reversals.md) - [Pi](/sidef-lang/programming_tasks/p/pi.md) - [Pick random element](/sidef-lang/programming_tasks/p/pick_random_element.md) - [Pierpont primes](/sidef-lang/programming_tasks/p/pierpont_primes.md) - [Pig the dice game](/sidef-lang/programming_tasks/p/pig-the-dice-game.md) - [Player](/sidef-lang/programming_tasks/p/pig-the-dice-game/player.md) - [Piprimes](/sidef-lang/programming_tasks/p/piprimes.md) - [Pisano period](/sidef-lang/programming_tasks/p/pisano_period.md) - [Plasma effect](/sidef-lang/programming_tasks/p/plasma_effect.md) - [Playfair cipher](/sidef-lang/programming_tasks/p/playfair_cipher.md) - [Playing cards](/sidef-lang/programming_tasks/p/playing_cards.md) - [Plot coordinate pairs](/sidef-lang/programming_tasks/p/plot_coordinate_pairs.md) - [Pointers and references](/sidef-lang/programming_tasks/p/pointers_and_references.md) - [Polymorphic copy](/sidef-lang/programming_tasks/p/polymorphic_copy.md) - [Polymorphism](/sidef-lang/programming_tasks/p/polymorphism.md) - [Polynomial derivative](/sidef-lang/programming_tasks/p/polynomial_derivative.md) - [Polynomial long division](/sidef-lang/programming_tasks/p/polynomial_long_division.md) - [Polynomial regression](/sidef-lang/programming_tasks/p/polynomial_regression.md) - [Polynomial synthetic division](/sidef-lang/programming_tasks/p/polynomial_synthetic_division.md) - [Population count](/sidef-lang/programming_tasks/p/population_count.md) - [Positive decimal integers with the digit 1 occurring exactly twice](/sidef-lang/programming_tasks/p/positive_decimal_integers_with_the_digit_1_occurring_exactly_twice.md) - [Power set](/sidef-lang/programming_tasks/p/power_set.md) - [Powerful numbers](/sidef-lang/programming_tasks/p/powerful_numbers.md) - [Practical numbers](/sidef-lang/programming_tasks/p/practical_numbers.md) - [Price fraction](/sidef-lang/programming_tasks/p/price_fraction.md) - [Primality by trial division](/sidef-lang/programming_tasks/p/primality_by_trial_division.md) - [Primality by Wilson's theorem](/sidef-lang/programming_tasks/p/primality_by_wilsons_theorem.md) - [Prime conspiracy](/sidef-lang/programming_tasks/p/prime_conspiracy.md) - [Prime decomposition](/sidef-lang/programming_tasks/p/prime_decomposition.md) - [Prime numbers p for which the sum of primes less than or equal to p is prime](/sidef-lang/programming_tasks/p/prime_numbers_p_for_which_the_sum_of_primes_less_than_or_equal_to_p_is_prime.md) - [Prime numbers which contain 123](/sidef-lang/programming_tasks/p/prime_numbers_which_contain_123.md) - [Prime numbers whose neighboring pairs are tetraprimes](/sidef-lang/programming_tasks/p/prime_numbers_whose_neighboring_pairs_are_tetraprimes.md) - [Prime reciprocal sum](/sidef-lang/programming_tasks/p/prime_reciprocal_sum.md) - [Prime triplets](/sidef-lang/programming_tasks/p/prime_triplets.md) - [Primes - allocate descendants to their ancestors](/sidef-lang/programming_tasks/p/primes_-_allocate_descendants_to_their_ancestors.md) - [Primes n\*2 m 1](/sidef-lang/programming_tasks/p/primes_n-2_m_1.md) - [Primes which contain only one odd digit](/sidef-lang/programming_tasks/p/primes_which_contain_only_one_odd_digit.md) - [Primes whose first and last number is 3](/sidef-lang/programming_tasks/p/primes_whose_first_and_last_number_is_3.md) - [Primes whose sum of digits is 25](/sidef-lang/programming_tasks/p/primes_whose_sum_of_digits_is_25.md) - [Primes with digits in nondecreasing order](/sidef-lang/programming_tasks/p/primes_with_digits_in_nondecreasing_order.md) - [Primorial numbers](/sidef-lang/programming_tasks/p/primorial_numbers.md) - [Priority queue](/sidef-lang/programming_tasks/p/priority_queue.md) - [Probabilistic choice](/sidef-lang/programming_tasks/p/probabilistic_choice.md) - [Problem of Apollonius](/sidef-lang/programming_tasks/p/problem_of_apollonius.md) - [Product of divisors](/sidef-lang/programming_tasks/p/product_of_divisors.md) - [Product of min and max prime factors](/sidef-lang/programming_tasks/p/product_of_min_and_max_prime_factors.md) - [Program name](/sidef-lang/programming_tasks/p/program_name.md) - [Program termination](/sidef-lang/programming_tasks/p/program_termination.md) - [Proper divisors](/sidef-lang/programming_tasks/p/proper_divisors.md) - [Pseudo-random numbers](/sidef-lang/programming_tasks/p/pseudo-random-numbers.md) - [Combined recursive generator MRG32k3a](/sidef-lang/programming_tasks/p/pseudo-random-numbers/combined_recursive_generator_mrg32k3a.md) - [Middle-square method](/sidef-lang/programming_tasks/p/pseudo-random-numbers/middle-square_method.md) - [PCG32](/sidef-lang/programming_tasks/p/pseudo-random-numbers/pcg32.md) - [Splitmix64](/sidef-lang/programming_tasks/p/pseudo-random-numbers/splitmix64.md) - [Xorshift star](/sidef-lang/programming_tasks/p/pseudo-random-numbers/xorshift_star.md) - [Pseudorandom number generator image](/sidef-lang/programming_tasks/p/pseudorandom_number_generator_image.md) - [Pythagoras tree](/sidef-lang/programming_tasks/p/pythagoras_tree.md) - [Pythagorean quadruples](/sidef-lang/programming_tasks/p/pythagorean_quadruples.md) - [Pythagorean triples](/sidef-lang/programming_tasks/p/pythagorean_triples.md)