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Talk:Palindromic gapful numbers: Difference between revisions
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:--[[User:Paddy3118|Paddy3118]] ([[User talk:Paddy3118|talk]]) 19:59, 12 November 2019 (UTC)
:::Yes, that's my understanding and it must be correct as it's what Gerard's REXX entry does and he's the author of the task. --[[User:PureFox|PureFox]] ([[User talk:PureFox|talk]]) 20:38, 12 November 2019 (UTC)
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::: Starting at '''100''' (which is the minimum that gapful numbers start at, as per the note on the task page that all positive integers below '''100''' are trivially gapful numbers), then ...
:::::* generate '''100''' palindromic gapful numbers, and then take (pick) the last '''15''' of those '''100''' numbers.
:::::* generate '''1000''' palindromic gapful numbers, and then take (pick) the last '''10''' of those '''1000''' numbers.
::: There is probably a better and cleaner way of expressing the above (two) sentences, but the (bottom/lower) limit of '''100''' kinda throws a monkey wrench into the works, er ... wording of the expression.
::: Another way of expressing the above would be:
:::::* generate the '''86<sup>th</sup>''' ──► '''100<sup>th</sup>''' palindromic gapful numbers, ignoring those below '''100'''.
:::::* generate the '''991<sup>st</sup>''' ──► '''1000<sup>th</sup>''' palindromic gapful numbers, ignoring those below '''100'''.
I had assumed that programmers would take/pick those (above) palindromic gapful numbers in increasing order, and it seemed unnecessary to state that.
I hope the parenthetic phrase '''(nine sets)''' was clear enough; If it wasn't for the output, I don't know how I would've expressed it. I assumed the output from the REXX example would make that clear enough. I had toyed with expanding that parenthesized expression, but it just got too overly wordy and inelegant, and even somewhat ugly. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 00:12, 13 November 2019 (UTC)
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