I am also interested in historical counting systems. Any links you can share?
I use a mathjs based macro for doing base conversions. Best regards, iilyak On 11 October 2019 06:45:40 GMT-07:00, "@TiddlyTweeter" <[email protected]> wrote: >Repeat for email. > >On Friday, 11 October 2019 15:45:12 UTC+2, @TiddlyTweeter wrote: >> >> In another thread Mark S. presented a magic macro to convert from >decimal >> to other bases. >> >> I think its a rather marvellous bit of coding.* I have no idea how it > >> works*, but it does work well. >> >> Its a VERY good illustration of using TW macros to achieve something >> specific in a direct very useful, economic way. >> >> This is my slight cosmetic re-order of it for converting decimal to >> base-2 through to base-36. >> >> \define base-convertor(num,base,result:"") >> <$list filter="[<__num__>remainder<__base__>add[1]]" variable=remidx> >> <$list filter="[<__num__>divide<__base__>trunc[]]" variable=num> >> <$list filter="[enlist<syms>nth<remidx>addsuffix<__result__>]" >> variable="result"> >> <$list filter="[<num>!regexp[^0$]]" emptyMessage=<<result>>> >> <$macrocall $name=base-convertor num=<<num>> base="$base$" >> result=<<result>>/> >> </$list> >> </$list> >> </$list> >> </$list> >> \end >> >> \define re-base(base,num) >> <$vars >> syms="0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V >W X >> Y Z" >> > >> <<base-convertor $num$ $base$>> >> </$vars> >> \end >> >> Syntax: re-base "base" "decimal inut" >> Supports base-2 to base-36. >> >> ;Examples >> :1025 decimal = <<re-base 2 >90000000000000000000000000000000000000000000>> >> base 2 >> :1025 decimal = <<re-base 10 1025>> base 10 >> :1025 decimal = <<re-base 16 1025>> base 16 >> :1025 decimal = <<re-base 26 1025>> base 26 >> :1025 decimal = <<re-base 27 1025>> base 27 >> :1025 decimal = <<re-base 36 1025>> base 36 >> >> >> Partly Mark responded because I needed that tool to properly document > >> non-Westren body-part counting systems. >> As soon as I had it up I wrote a note for a culture that counts in >> base-27. I could not have done it without it. >> >> Thanks Mark! >> >> [image: Annotation 2019-10-11 145847.jpg] >> >> >> Best wishes >> TT >> > >-- >You received this message because you are subscribed to the Google >Groups "TiddlyWiki" group. >To unsubscribe from this group and stop receiving emails from it, send >an email to [email protected]. >To view this discussion on the web visit >https://groups.google.com/d/msgid/tiddlywiki/152f7069-7afd-4b1e-9915-759c1b6204e3%40googlegroups.com. -- Sent from my Android device with K-9 Mail. Please excuse my brevity. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/84138BEE-FF7A-4946-96DB-73B09F4A6797%40gmail.com.
