> Ground rules are critical, but how about
>
> /.1
>
> where "/" represents the APL-style monadic divide or
> multiplicative inverse.
>
> 1/.1
>
> takes two.
Indeed, but ".1" represents 1 / radix, so 1/.1 is just radix.
The whole point of my tongue-in-cheek posting was to indicate how an
implicit assumption of decimal notation had crept in, despite the clear
intention of the original to make the representation explicit.
So: you *cannot* assume any particular radix; your solution must work for
all integer radixes.
Paul
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