why is RPN always reversed (not PN)
05-25-2015, 07:19 AM
Post: #4
 StephenG1CMZ Senior Member Posts: 845 Joined: May 2015
RE: why is RPN always reversed (not PN)
(05-25-2015 06:42 AM)Thomas Radtke Wrote:  In PN, you'd need to have a mixed stack of operators and operands, which ruled this notation out for early calculators imo.

I must be misunderstanding something here...
To me,
1 2 + 3 *
And
* 3 + 2 1
Would both appear to need a stack capable of storing operands or oprerators in a mixed sequence - but only one might generate an error as you enter 3.14i nstead of 3 (depending on the domain of your + and * functions).

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 Messages In This Thread why is RPN always reversed (not PN) - StephenG1CMZ - 05-25-2015, 06:14 AM RE: why is RPN always reversed (not PN) - Thomas Radtke - 05-25-2015, 06:42 AM RE: why is RPN always reversed (not PN) - StephenG1CMZ - 05-25-2015 07:19 AM RE: why is RPN always reversed (not PN) - Les Bell - 05-25-2015, 07:44 AM RE: why is RPN always reversed (not PN) - StephenG1CMZ - 05-25-2015, 12:23 PM RE: why is RPN always reversed (not PN) - Gerald H - 05-25-2015, 07:11 AM RE: why is RPN always reversed (not PN) - StephenG1CMZ - 05-25-2015, 12:04 PM RE: why is RPN always reversed (not PN) - Didier Lachieze - 05-25-2015, 09:01 AM RE: why is RPN always reversed (not PN) - Gerald H - 05-25-2015, 09:54 AM RE: why is RPN always reversed (not PN) - ndzied1 - 05-25-2015, 10:59 AM RE: why is RPN always reversed (not PN) - nlj - 05-25-2015, 11:44 AM

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