# W

- [Wagstaff primes](/sidef-lang/programming_tasks/w/wagstaff_primes.md)
- [Walk a directory](/sidef-lang/programming_tasks/w/walk-a-directory.md)
- [Non-recursively](/sidef-lang/programming_tasks/w/walk-a-directory/non-recursively.md)
- [Recursively](/sidef-lang/programming_tasks/w/walk-a-directory/recursively.md)
- [Water collected between towers](/sidef-lang/programming_tasks/w/water_collected_between_towers.md)
- [Web scraping](/sidef-lang/programming_tasks/w/web_scraping.md)
- [Weird numbers](/sidef-lang/programming_tasks/w/weird_numbers.md)
- [Welch's t-test](/sidef-lang/programming_tasks/w/welchs_t-test.md)
- [Wieferich primes](/sidef-lang/programming_tasks/w/wieferich_primes.md)
- [Wilson primes of order n](/sidef-lang/programming_tasks/w/wilson_primes_of_order_n.md)
- [Window creation](/sidef-lang/programming_tasks/w/window_creation.md)
- [Wireworld](/sidef-lang/programming_tasks/w/wireworld.md)
- [Wolstenholme numbers](/sidef-lang/programming_tasks/w/wolstenholme_numbers.md)
- [Word break problem](/sidef-lang/programming_tasks/w/word_break_problem.md)
- [Word frequency](/sidef-lang/programming_tasks/w/word_frequency.md)
- [Word wrap](/sidef-lang/programming_tasks/w/word_wrap.md)
- [Write entire file](/sidef-lang/programming_tasks/w/write_entire_file.md)
- [Write float arrays to a text file](/sidef-lang/programming_tasks/w/write_float_arrays_to_a_text_file.md)
- [Write language name in 3D ASCII](/sidef-lang/programming_tasks/w/write_language_name_in_3d_ascii.md)