IsPal ← ≍⇌.+×32<@a.▽:⟜˜∊:/⊂+⊙¤"Aa"⇡26
┌─╴test
  ⍤⟜≍: 1 IsPal "tacocat"
  ⍤⟜≍: 1 IsPal "A man, a plan, a canal: Panama!"
  ⍤⟜≍: 1 IsPal "acrobat" # throws error
└─╴