Algebraic HP calculators, hierarchy of operations.

[Vtile]

I do understand. Thank you for information. Is there any kind of time window when and how HP did use logic or another to parse algebraic entry.

I would assume from my current understanding ie. that early pioneer series would have used higher priority implicid multiplication. Then with same or other models at some point removed this extra layer used for grouping at paper (at some branches of mathematic). Etc.