*View this file with results and syntax highlighting [here](https://mlochbaum.github.io/BQN/help/occurrencecount_progressiveindexof.html).* # Square Original Of or Equal To (`⊒`) ## `⊒ 𝕩`: Occurrence Count [→full documentation](../doc/selfcmp.md#occurrence-count) Number of times each major cell of `𝕩` has occurred before the current position. ⊒ 2‿7‿1‿8‿1‿7‿1‿8‿2‿8‿4 ≍⟜⊒ 2‿7‿1‿8‿1‿7‿1‿8‿2‿8‿4 ## `𝕨 ⊒ 𝕩`: Progressive Index Of [→full documentation](../doc/search.md#progressive-index-of) Index of the first unused match of each major cell of `𝕩` in `𝕨`. If there are no more matches left, the length of `𝕨` is placed in that position. "aaa" ⊒ "aaaaa" "aaabb" ⊒ "ababababab"