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C o m p e t i t i o n .

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  C o m p e t i t i o n . I I <he12457@hotmail.com> - 2021-01-09 11:25 -0800
    Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-10 09:21 +0000
      Re: C o m p e t i t i o n . I I <he12457@hotmail.com> - 2021-01-10 12:01 -0800
        Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-10 22:15 +0000
          Re: C o m p e t i t i o n . I I <kpuctjanpobam@mail.com> - 2021-01-12 05:17 -0800
            Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-12 16:16 +0000
              Re: C o m p e t i t i o n . Y A <kpuctjanpobam@mail.com> - 2021-01-12 15:25 -0800
                Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-13 09:14 +0000
                  Re: C o m p e t i t i o n . Y A <kpuctjanpobam@mail.com> - 2021-01-13 02:31 -0800
                    Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-13 20:01 +0000
                      Re: C o m p e t i t i o n . ند ارائه نماييدبا تشکر ند ارائه نمايي تش <kpuctjanpobam@mail.com> - 2021-01-14 08:29 -0800
                      Re: C o m p e t i t i o n . ند ارائه نماييدبا تشکر ند ارائه نمايي تش <kpuctjanpobam@mail.com> - 2021-01-14 08:48 -0800
                        Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-14 19:16 +0000
                          Re: C o m p e t i t i o n . H e <he12457@hotmail.com> - 2021-01-14 11:28 -0800
                            Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-15 07:46 +0000
                              Re: C o m p e t i t i o n . Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2021-01-17 23:23 +1100
                                Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-22 06:36 +0000
                            Re: C o m p e t i t i o n . David Brown <david.brown@hesbynett.no> - 2021-01-15 11:13 +0100
                      Re: C o m p e t i t i o n . Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2021-01-15 02:01 +1100
                        Re: C o m p e t i t i o n . Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-01-15 00:23 +0000
                          Re: C o m p e t i t i o n . David Brown <david.brown@hesbynett.no> - 2021-01-15 13:56 +0100
                            Re: C o m p e t i t i o n . H e <he12457@hotmail.com> - 2021-01-17 03:23 -0800
                              Re: C o m p e t i t i o n . Richard Heathfield <rjh@cpax.org.uk> - 2021-01-17 18:43 +0000

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#11742 — C o m p e t i t i o n .

Who will post the cross sum of following number first, will get an adorable reward from me. 

The number: 
58349863148967341986793418678943167894317568943579812347643263461438776834177468314765864533703574653715456716465804656089576907569568456680257542768434686845796847604780607596864802468874265807426587026578406466539046579467684906749046758049663588463065836688638658768635806365889683658746862486247487652774625076485806648907696785970467957869053868763688046236880752825686569877668097860897676807746897456368844688745768468242622686282862869874986865749685796854096857706759759674569074359357697539375903576096780074367589368590356896686539





IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

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#11743

On 09/01/2021 19:25, I I wrote:
> Who will post the cross sum of following number first, will get an adorable reward from me.

I am given to understand from my limited research on the subject that 
"cross sum" is baby talk for "digital root", which we get by adding all 
the digits together, giving 2977.

Applying the rule recursively, we next get 25, and then 7.

You can keep your adorable reward.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11745

Richard Heathfield kirjutas pühapäev, 10. jaanuar 2021 kl 11:21:24 UTC+2:
> On 09/01/2021 19:25, I I wrote: 
> > Who will post the cross sum of following number first, will get an adorable reward from me.
> I am given to understand from my limited research on the subject that 
> "cross sum" is baby talk for "digital root", which we get by adding all 
> the digits together, giving 2977. 
> 
> Applying the rule recursively, we next get 25, and then 7. 
> 
> You can keep your adorable reward. 
> 
> -- 
> Richard Heathfield 
> Email: rjh at cpax dot org dot uk 
> "Usenet is a strange place" - dmr 29 July 1999 
> Sig line 4 vacant - apply within

Hello Richard.
The answer is unfortunately not the same, as I have.





Kristjan Robam

iiiiiiiiiiiia at bestmail . us
372 6861327

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#11749

On 10/01/2021 20:01, I I wrote:
> Richard Heathfield kirjutas pühapäev, 10. jaanuar 2021 kl 11:21:24 UTC+2:
>> On 09/01/2021 19:25, I I wrote:
>>> Who will post the cross sum of following number first, will get an adorable reward from me.
>> I am given to understand from my limited research on the subject that
>> "cross sum" is baby talk for "digital root", which we get by adding all
>> the digits together, giving 2977.
>>
>> Applying the rule recursively, we next get 25, and then 7.
>>
>> You can keep your adorable reward.
>>
> 
> Hello Richard.
> The answer is unfortunately not the same, as I have.

Then either your answer is wrong or you mean something different by 
"cross sum". If you don't define your terms, you cannot expect agreement.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11756

Richard Heathfield kirjutas esmaspäev, 11. jaanuar 2021 kl 00:15:43 UTC+2:
> On 10/01/2021 20:01, I I wrote: 
> > Richard Heathfield kirjutas pühapäev, 10. jaanuar 2021 kl 11:21:24 UTC+2: 
> >> On 09/01/2021 19:25, I I wrote: 
> >>> Who will post the cross sum of following number first, will get an adorable reward from me. 
> >> I am given to understand from my limited research on the subject that 
> >> "cross sum" is baby talk for "digital root", which we get by adding all 
> >> the digits together, giving 2977. 
> >> 
> >> Applying the rule recursively, we next get 25, and then 7. 
> >> 
> >> You can keep your adorable reward. 
> >> 
> >
> > Hello Richard. 
> > The answer is unfortunately not the same, as I have.
> Then either your answer is wrong or you mean something different by 
> "cross sum". If you don't define your terms, you cannot expect agreement.
> -- 
> Richard Heathfield 
> Email: rjh at cpax dot org dot uk 
> "Usenet is a strange place" - dmr 29 July 1999 
> Sig line 4 vacant - apply within

I am so sorry, that You have not attended school . . . . . .

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#11760

On 12/01/2021 13:17, I I wrote:

<snip>

> I am so sorry, that You have not attended school . . . . . .

Irony is always amusing, but the more so when unintentional.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11764

Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01 UTC+2:
> On 12/01/2021 13:17, I I wrote: 
> 
> <snip>
> > I am so sorry, that You have not attended school . . . . . .
> Irony is always amusing, but the more so when unintentional.
> -- 
> Richard Heathfield 
> Email: rjh at cpax dot org dot uk 
> "Usenet is a strange place" - dmr 29 July 1999 
> Sig line 4 vacant - apply within

Hmmmmmmmmmmmmmmmmmmmm...........................
Cross sum isn't logically: sum of all digits?
abcde cs=a+b+c+d+e

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#11765

On 12/01/2021 23:25, Y A wrote:
> Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01 UTC+2:
>> On 12/01/2021 13:17, I I wrote:
>>
>> <snip>
>>> I am so sorry, that You have not attended school . . . . . .
>> Irony is always amusing, but the more so when unintentional.
> 
> Hmmmmmmmmmmmmmmmmmmmm...........................
> Cross sum isn't logically: sum of all digits?
> abcde cs=a+b+c+d+e

I'd never heard the term before the OP used it at the beginning of this 
thread, so I looked it up.

The only meaning I could find for it online was "sum of all digits" 
(i.e. the digital root), so I calculated the sum of all digits.

Presumably the OP (who has a different result) means something different 
by it, but he appears unwilling to share that meaning with us.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11766

Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 11:14:09 UTC+2:
> On 12/01/2021 23:25, Y A wrote: 
> > Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01 UTC+2: 
> >> On 12/01/2021 13:17, I I wrote: 
> >> 
> >> <snip> 
> >>> I am so sorry, that You have not attended school . . . . . . 
> >> Irony is always amusing, but the more so when unintentional. 
> >
> > Hmmmmmmmmmmmmmmmmmmmm........................... 
> > Cross sum isn't logically: sum of all digits? 
> > abcde cs=a+b+c+d+e
> I'd never heard the term before the OP used it at the beginning of this 
> thread, so I looked it up. 
> 
> The only meaning I could find for it online was "sum of all digits" 
> (i.e. the digital root), so I calculated the sum of all digits. 
> 
> Presumably the OP (who has a different result) means something different 
> by it, but he appears unwilling to share that meaning with us.
> -- 
> Richard Heathfield 
> Email: rjh at cpax dot org dot uk 
> "Usenet is a strange place" - dmr 29 July 1999 
> Sig line 4 vacant - apply within

OP=me

Kriss

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#11774

On 13/01/2021 10:31, Y A wrote:
> Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 11:14:09 UTC+2:
>> On 12/01/2021 23:25, Y A wrote:
>>> Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01 UTC+2:
>>>> On 12/01/2021 13:17, I I wrote:
>>>>
>>>> <snip>
>>>>> I am so sorry, that You have not attended school . . . . . .
>>>> Irony is always amusing, but the more so when unintentional.
>>>
>>> Hmmmmmmmmmmmmmmmmmmmm...........................
>>> Cross sum isn't logically: sum of all digits?
>>> abcde cs=a+b+c+d+e
>> I'd never heard the term before the OP used it at the beginning of this
>> thread, so I looked it up.
>>
>> The only meaning I could find for it online was "sum of all digits"
>> (i.e. the digital root), so I calculated the sum of all digits.
>>
>> Presumably the OP (who has a different result) means something different
>> by it, but he appears unwilling to share that meaning with us.
> 
> OP=me

Then you ought to know what you mean by "cross sum", so you ought to be 
in a position to share that information.

If you mean "digital root", I've already given the correct answer, which 
you say is different to your answer, which means you're wrong.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11777

Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 22:02:00 UTC+2:
> On 13/01/2021 10:31, Y A wrote: 
> > Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 11:14:09 UTC+2: 
> >> On 12/01/2021 23:25, Y A wrote: 
> >>> Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01 UTC+2: 
> >>>> On 12/01/2021 13:17, I I wrote: 
> >>>> 
> >>>> <snip> 
> >>>>> I am so sorry, that You have not attended school . . . . . . 
> >>>> Irony is always amusing, but the more so when unintentional. 
> >>> 
> >>> Hmmmmmmmmmmmmmmmmmmmm........................... 
> >>> Cross sum isn't logically: sum of all digits? 
> >>> abcde cs=a+b+c+d+e 
> >> I'd never heard the term before the OP used it at the beginning of this 
> >> thread, so I looked it up. 
> >> 
> >> The only meaning I could find for it online was "sum of all digits" 
> >> (i.e. the digital root), so I calculated the sum of all digits. 
> >> 
> >> Presumably the OP (who has a different result) means something different 
> >> by it, but he appears unwilling to share that meaning with us. 
> >
> > OP=me 
> 
> Then you ought to know what you mean by "cross sum", so you ought to be 
> in a position to share that information. 
> 
> If you mean "digital root", I've already given the correct answer, which 
> you say is different to your answer, which means you're wrong.
> -- 
> Richard Heathfield 
> Email: rjh at cpax dot org dot uk 
> "Usenet is a strange place" - dmr 29 July 1999 
> Sig line 4 vacant - apply within

Isn't cross sum logically digits seperated with sign + ?








He

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#11778

Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 22:02:00 UTC+2:
> On 13/01/2021 10:31, Y A wrote: 
> > Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 11:14:09 UTC+2: 
> >> On 12/01/2021 23:25, Y A wrote: 
> >>> Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01 UTC+2: 
> >>>> On 12/01/2021 13:17, I I wrote: 
> >>>> 
> >>>> <snip> 
> >>>>> I am so sorry, that You have not attended school . . . . . . 
> >>>> Irony is always amusing, but the more so when unintentional. 
> >>> 
> >>> Hmmmmmmmmmmmmmmmmmmmm........................... 
> >>> Cross sum isn't logically: sum of all digits? 
> >>> abcde cs=a+b+c+d+e 
> >> I'd never heard the term before the OP used it at the beginning of this 
> >> thread, so I looked it up. 
> >> 
> >> The only meaning I could find for it online was "sum of all digits" 
> >> (i.e. the digital root), so I calculated the sum of all digits. 
> >> 
> >> Presumably the OP (who has a different result) means something different 
> >> by it, but he appears unwilling to share that meaning with us. 
> >
> > OP=me 
> 
> Then you ought to know what you mean by "cross sum", so you ought to be 
> in a position to share that information. 
> 
> If you mean "digital root", I've already given the correct answer, which 
> you say is different to your answer, which means you're wrong.
> -- 
> Richard Heathfield 
> Email: rjh at cpax dot org dot uk 
> "Usenet is a strange place" - dmr 29 July 1999 
> Sig line 4 vacant - apply within

The thing you provided is wrong comparing to my answer.
So You will not get the reward at the moment. You are welcomed to guess it again.
The first one, who has the same number as me, will get his or her price.





He

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#11781

On 14/01/2021 16:48, ند ارائه نماييدبا تشکر ند ارائه نمايي تش wrote:

<snip>

> The thing you provided is wrong comparing to my answer.

Then your answer is wrong.

> So You will not get the reward at the moment. You are welcomed to guess it again.

My answer wasn't a guess.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11782

Richard Heathfield kirjutas neljapäev, 14. jaanuar 2021 kl 21:16:23 UTC+2:
> On 14/01/2021 16:48, ند ارائه نماييدبا تشکر ند ارائه نمايي تش wrote: 
> 
> <snip>
> > The thing you provided is wrong comparing to my answer.
> Then your answer is wrong.
> > So You will not get the reward at the moment. You are welcomed to guess it again.
> My answer wasn't a guess.
> -- 
> Richard Heathfield 
> Email: rjh at cpax dot org dot uk 
> "Usenet is a strange place" - dmr 29 July 1999 
> Sig line 4 vacant - apply within

I will wait for some others too and then if it is not guessed I will check it.





He

E-mail: iiiiiiiiiiiia at bestmail.us
Phone: 372 6861327

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#11785

On 14/01/2021 19:28, H e wrote:
> Richard Heathfield kirjutas neljapäev, 14. jaanuar 2021 kl 21:16:23 UTC+2:
>> On 14/01/2021 16:48, ند ارائه نماييدبا تشکر ند ارائه نمايي تش wrote:
>>
>> <snip>
>>> The thing you provided is wrong comparing to my answer.
>> Then your answer is wrong.
>>> So You will not get the reward at the moment. You are welcomed to guess it again.
>> My answer wasn't a guess.
 >
> I will wait for some others too and then if it is not guessed I will check it.

If you're relying on guesswork, I'm not surprised that your answer 
differs from mine.

As you may have noted, Peter Haywood has now posted source code that 
confirms my intermediate and final results. That's not surprising, 
because we weren't guessing.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11861

Groovy hepcat Richard Heathfield was jivin' in comp.programming on Fri,
15 Jan 2021 06:46 pm. It's a cool scene! Dig it.

> On 14/01/2021 19:28, H e wrote:
>> Richard Heathfield kirjutas neljapäev, 14. jaanuar 2021 kl 21:16:23
>> UTC+2:
>>> On 14/01/2021 16:48, ند ارائه نماييدبا تشکر ند ارائه نمايي تش wrote:
>>>
>>> <snip>
>>>> The thing you provided is wrong comparing to my answer.
>>> Then your answer is wrong.
>>>> So You will not get the reward at the moment. You are welcomed to
>>>> guess it again.
>>> My answer wasn't a guess.
>  >
>> I will wait for some others too and then if it is not guessed I will
>> check it.
> 
> If you're relying on guesswork, I'm not surprised that your answer
> differs from mine.
> 
> As you may have noted, Peter Haywood has now posted source code that
> confirms my intermediate and final results. That's not surprising,
> because we weren't guessing.

  I find it interesting that the OP not only posts simple "You're
wrong," statements, without stating why you're wrong - classic troll
behaviour; but also seems to be posting under several different names -
also classic troll behaviour. I also have him killfiled, and don't see
his posts under either of those names unless I temporarily disable the
killfile; so I must have deemed him a troll, or at least a pest, before
this.

-- 


----- Dig the NEW and IMPROVED news sig!! -----


-------------- Shaggy was here! ---------------
              Ain't I'm a dawg!!

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#11900

On 17/01/2021 12:23, Peter 'Shaggy' Haywood wrote:

<snip>

>    I find it interesting that the OP not only posts simple "You're
> wrong," statements, without stating why you're wrong - classic troll
> behaviour; but also seems to be posting under several different names -
> also classic troll behaviour. I also have him killfiled, and don't see
> his posts under either of those names unless I temporarily disable the
> killfile; so I must have deemed him a troll, or at least a pest, before
> this.


I showed him far too much patience (I suppose I'm one of life's 
optimists), but he has at last been dumped into the bozo bin.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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#11786

On 14/01/2021 20:28, H e wrote:
> Richard Heathfield kirjutas neljapäev, 14. jaanuar 2021 kl 21:16:23 UTC+2:
>> On 14/01/2021 16:48, ند ارائه نماييدبا تشکر ند ارائه نمايي تش wrote: 
>>
>> <snip>
>>> The thing you provided is wrong comparing to my answer.
>> Then your answer is wrong.
>>> So You will not get the reward at the moment. You are welcomed to guess it again.
>> My answer wasn't a guess.
>> -- 
>> Richard Heathfield 
>> Email: rjh at cpax dot org dot uk 
>> "Usenet is a strange place" - dmr 29 July 1999 
>> Sig line 4 vacant - apply within
> 
> I will wait for some others too and then if it is not guessed I will check it.
> 

Assuming the definition of "cross sum" as the recursive sum of the
decimal digits of a number is what you intended, then Richard's answer
is correct, and you are wrong.  (This is not a surprise.)

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#11783

Groovy hepcat Richard Heathfield was jivin' in comp.programming on Thu,
14 Jan 2021 07:01 am. It's a cool scene! Dig it.

> On 13/01/2021 10:31, Y A wrote:
>> Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 11:14:09
>> UTC+2:
>>> On 12/01/2021 23:25, Y A wrote:
>>>> Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01
>>>> UTC+2:
>>>>> On 12/01/2021 13:17, I I wrote:
>>>>>
>>>>> <snip>
>>>>>> I am so sorry, that You have not attended school . . . . . .
>>>>> Irony is always amusing, but the more so when unintentional.
>>>>
>>>> Hmmmmmmmmmmmmmmmmmmmm...........................
>>>> Cross sum isn't logically: sum of all digits?
>>>> abcde cs=a+b+c+d+e
>>> I'd never heard the term before the OP used it at the beginning of
>>> this thread, so I looked it up.
>>>
>>> The only meaning I could find for it online was "sum of all digits"
>>> (i.e. the digital root), so I calculated the sum of all digits.
>>>
>>> Presumably the OP (who has a different result) means something
>>> different by it, but he appears unwilling to share that meaning with
>>> us.
>> 
>> OP=me
> 
> Then you ought to know what you mean by "cross sum", so you ought to
> be in a position to share that information.
> 
> If you mean "digital root", I've already given the correct answer,
> which you say is different to your answer, which means you're wrong.

  Just to add my two cents to this discussion, for what it's worth
(somewhere between one and three cents, presumably), I wrote, compiled
and ran the following program. It bears out Richard's results.

=====================================================================
#include <stdio.h>
#include <string.h>

/* Calculate the "cross sum" (ie., digital root or sum of all the
digits) for the given term. */
unsigned long cross_sum(const char *term)
{
  unsigned long sum = 0;
  const char *digit;

  for(digit = term; '\0' != *digit; digit++)
    sum += (*digit - '0');

  return sum;
}

#define BIG_ENOUGH 10

int main(void)
{
  const char *init_term
= "58349863148967341986793418678943167894317568943579812347643263461438776834177468314765864533703574653715456716465804656089576907569568456680257542768434686845796847604780607596864802468874265807426587026578406466539046579467684906749046758049663588463065836688638658768635806365889683658746862486247487652774625076485806648907696785970467957869053868763688046236880752825686569877668097860897676807746897456368844688745768468242622686282862869874986865749685796854096857706759759674569074359357697539375903576096780074367589368590356896686539";
  unsigned long sum;
  char new_term[BIG_ENOUGH];

  sum = cross_sum(init_term);
  sprintf(new_term, "%lu", sum);
  printf("sum = %lu\n", sum);
  while(1 < strlen(new_term))
  {
    sum = cross_sum(new_term);
    sprintf(new_term, "%lu", sum);
    printf("sum = %lu\n", sum);
  }

  return 0;
}
=====================================================================

  Results:

sum = 2977
sum = 25
sum = 7


-- 


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#11784

Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> writes:

> Groovy hepcat Richard Heathfield was jivin' in comp.programming on Thu,
> 14 Jan 2021 07:01 am. It's a cool scene! Dig it.
>
>> On 13/01/2021 10:31, Y A wrote:
>>> Richard Heathfield kirjutas kolmapäev, 13. jaanuar 2021 kl 11:14:09
>>> UTC+2:
>>>> On 12/01/2021 23:25, Y A wrote:
>>>>> Richard Heathfield kirjutas teisipäev, 12. jaanuar 2021 kl 18:17:01
>>>>> UTC+2:
>>>>>> On 12/01/2021 13:17, I I wrote:
>>>>>>
>>>>>> <snip>
>>>>>>> I am so sorry, that You have not attended school . . . . . .
>>>>>> Irony is always amusing, but the more so when unintentional.
>>>>>
>>>>> Hmmmmmmmmmmmmmmmmmmmm...........................
>>>>> Cross sum isn't logically: sum of all digits?
>>>>> abcde cs=a+b+c+d+e
>>>> I'd never heard the term before the OP used it at the beginning of
>>>> this thread, so I looked it up.
>>>>
>>>> The only meaning I could find for it online was "sum of all digits"
>>>> (i.e. the digital root), so I calculated the sum of all digits.
>>>>
>>>> Presumably the OP (who has a different result) means something
>>>> different by it, but he appears unwilling to share that meaning with
>>>> us.
>>> 
>>> OP=me
>> 
>> Then you ought to know what you mean by "cross sum", so you ought to
>> be in a position to share that information.
>> 
>> If you mean "digital root", I've already given the correct answer,
>> which you say is different to your answer, which means you're wrong.
>
>   Just to add my two cents to this discussion, for what it's worth
> (somewhere between one and three cents, presumably), I wrote, compiled
> and ran the following program. It bears out Richard's results.

Indeed (I would expect nothing else).  But the result is dependent on
the base so there is some ambiguity in the question.

Here is a Haskell program (well, some Haskell functions) that can give
the answer for various bases:

  digits b n = if n == 0 then [] else r : digits b q
    where (q, r) = divMod n b
   
  dSum b n = sum $ digits b n
   
  crossSum b n = head $ dropWhile (>= b) $ iterate (dSum b) n

*Main> let n = 58349863148967341986793418678943167894317568943579812347643263461438776834177468314765864533703574653715456716465804656089576907569568456680257542768434686845796847604780607596864802468874265807426587026578406466539046579467684906749046758049663588463065836688638658768635806365889683658746862486247487652774625076485806648907696785970467957869053868763688046236880752825686569877668097860897676807746897456368844688745768468242622686282862869874986865749685796854096857706759759674569074359357697539375903576096780074367589368590356896686539
*Main> dSum 10 n
2977
*Main> crossSum 10 n
7
*Main> crossSum 2 n
1
*Main> crossSum 5 n
3

-- 
Ben.

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