I believe this is what you were looking for
sum 46, 20, 26, 87, 11 Z* (1, 101, 101² … *)
sum 1234567890.polymod(101 xx *) Z* (1, 101, 101² … *)
On Mon, Nov 2, 2020 at 2:12 PM Sean McAfee wrote:
> On Fri, Oct 30, 2020 at 2:19 PM Elizabeth Mattijsen
> wrote:
>
>> > On 30 Oct 2020, at 22
On Fri, Oct 30, 2020 at 2:19 PM Elizabeth Mattijsen wrote:
> > On 30 Oct 2020, at 22:11, Sean McAfee wrote:
> > With polymod, I can get the values of digits even in large bases like
> 101:
> >
> > > 1234567890.polymod(101 xx *)
> > (46 20 26 87 11)
> >
> > Given a list of digit values li
> So you'd basically need a sub that takes a List, and a base factor, and
does the necessary arithmetic for you. I don't think that's in core.
If that were to exist, would that be an inverse of "polymod"- maybe
"polymul"? - with this property
@decomposed-num = $some_number.polymod(@a-sequence)
i
On Fri, Oct 30, 2020 at 2:19 PM Elizabeth Mattijsen wrote:
> > On 30 Oct 2020, at 22:11, Sean McAfee wrote:
> > > sum <46 20 26 87 11> Z* (1, * * 101 ... *)
> > 123456789
> >
> > ...but I'm hoping there's something more concise, shorter, and/or
> readable.
>
> Ah, so it's not about parsi
> On Oct 30, 2020, at 3:25 PM, Sean McAfee wrote:
>
> I want to construct a number from its digits in some arbitrary base. That
> is, to essentially do the inverse of this kind of polymod call:
>
> my @digits = $number.polymod($base xx *);
>
> I have a nagging feeling that I've seen a
> On 30 Oct 2020, at 22:11, Sean McAfee wrote:
>
> Sorry, it seems I wasn't explicit enough.
>
> With polymod, I can get the values of digits even in large bases like 101:
>
> > 1234567890.polymod(101 xx *)
> (46 20 26 87 11)
>
> Given a list of digit values like that, and the base, I
Sorry, it seems I wasn't explicit enough.
With polymod, I can get the values of digits even in large bases like 101:
> 1234567890.polymod(101 xx *)
(46 20 26 87 11)
Given a list of digit values like that, and the base, I want to reconstruct
the original number. One way would be the one
$ raku -e 'dd "g".parse-base(17)'
16
> On 30 Oct 2020, at 21:25, Sean McAfee wrote:
>
> I want to construct a number from its digits in some arbitrary base. That
> is, to essentially do the inverse of this kind of polymod call:
>
> my @digits = $number.polymod($base xx *);
>
> I have a n
