Editing Reverse Polish notation (section)

==== Others ====
* {{anchor|7-level RPN}}A seven-level stack had been implemented in the [[MITS&nbsp;7400C]] scientific desktop calculator in 1972<ref name="RE_1972"/><ref name="Berger_1973"/><ref name="MITS7400"/>
* [[National Semiconductor]] 4615 and 4640
* Novus 650 Mathbox, 3500 Sliderule, 4510 Mathematician, 4515 Mathematician PRO/RG, 4520 Scientist and 4525 Scientist PR
* Some [[APF Electronics Inc.|APF]] calculators like the Mark 55 (1976)<ref name="TKE_1976"/>
* [[SwissMicros]] (originally firming as RPN-Calc) calculators including the [[SwissMicros DM-10CC|DM-10CC]] (2012), [[SwissMicros DM-11CC|DM-11CC]] (2012), [[SwissMicros DM-12CC|DM-12CC]] (2012), [[SwissMicros DM-15CC|DM-15CC]] (2012), [[SwissMicros DM-16CC|DM-16CC]] (2012), [[SwissMicros DM10|DM10]] (2013), [[SwissMicros DM11|DM11]] (2013), [[SwissMicros DM12|DM12]] (2013), [[SwissMicros DM15|DM15]] (2013), [[SwissMicros DM16|DM16]] (2013), [[SwissMicros DM10L|DM10L Collector's Edition]] (2020), [[SwissMicros DM11L|DM11L]] (2016), [[SwissMicros DM12L|DM12L]] (2016), [[SwissMicros DM15L|DM15L]] (2015), [[SwissMicros DM16L|DM16L]] (2015), [[SwissMicros DM41|DM41]] (2015), [[SwissMicros DM41L|DM41L]] (2015), [[SwissMicros DM41X|DM41X]] (2020), [[SwissMicros DM42|DM42]] (2017) and [[SwissMicros DM32|DM32]] (2023).