Hasty Briefsbeta

Variation on Iota

20 days ago
  • #algorithm
  • #APL
  • #array-programming
  • Problem: Find the location of each item in a list of lists of items.
  • First solution: Flatten the list and map indices back to the original nested array.
  • Second solution: Use outer product of membership to find first occurrence of each item.
  • Optimized flat array solution using interval index provided by Josh David.
  • Alternative solution using Where (���) in monadic form suggested by Aaron Hsu.
  • Tribute to Roger Hui for his contributions to the discussion of ���.
  • Historical function 'ComputeRange' mentioned, originally from Gary Bergquist.