Thread: [flint-devel] randpoly

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When generating a random polynomial or using something like randint, is it
possible to change the random seed because it keeps giving me the same
polynomials every time.

-- 
Richard

Do you mean every time you run the program, or every
time you generate a random polynomial.

If you mean the former, then you could modify randint
to start with a global seed value (or values).

At present it always starts with the seed values
4035456057 and 6748392731 which need to be coprime to
4294967311 and 4294967357 respectively. 

You could provide a function called z_random_seed or
something like that which crunched away with the
current time in milliseconds and came up with two 32
bit numbers which are coprime to those two values.

If you do modify this function, can you ensure that if
the seed function is not called that it uses the
defaults that it currently uses, and also ensure that
you make it work for 32 bit and 64 bit machines
(you'll see there is separate code for both at
present).

Bill.

--- Richard Howell-Peak <ric...@gm...> wrote:

> When generating a random polynomial or using
> something like randint, is it
> possible to change the random seed because it keeps
> giving me the same
> polynomials every time.
> 
> -- 
> Richard
> >
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Actually, I think I am wrong. The seed values can be any 32 bit
numbers in that code, so long as the other constants are not altered.

Bill.

2008/8/8 William Hart <ha...@ya...>:
> Do you mean every time you run the program, or every
> time you generate a random polynomial.
>
> If you mean the former, then you could modify randint
> to start with a global seed value (or values).
>
> At present it always starts with the seed values
> 4035456057 and 6748392731 which need to be coprime to
> 4294967311 and 4294967357 respectively.
>
> You could provide a function called z_random_seed or
> something like that which crunched away with the
> current time in milliseconds and came up with two 32
> bit numbers which are coprime to those two values.
>
> If you do modify this function, can you ensure that if
> the seed function is not called that it uses the
> defaults that it currently uses, and also ensure that
> you make it work for 32 bit and 64 bit machines
> (you'll see there is separate code for both at
> present).
>
> Bill.
>
> --- Richard Howell-Peak <ric...@gm...> wrote:
>
>> When generating a random polynomial or using
>> something like randint, is it
>> possible to change the random seed because it keeps
>> giving me the same
>> polynomials every time.
>>
>> --
>> Richard
>> >
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>> Move Developer's challenge
>> Build the coolest Linux based applications with
>> Moblin SDK & win great prizes
>> Grand prize is a trip for two to an Open Source
>> event anywhere in the world
>>
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> _______________________________________________
>> flint-devel mailing list
>> fli...@li...
>>
> https://lists.sourceforge.net/lists/listinfo/flint-devel
>>
>
>
>
>
>
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Guys, which of you three will be around on 18th, 19th
or 20th of August. This workshop on modular forms is
happening in Bristol at that time. 

If you wanted to attend for a half day or full day, we
could meet at Coventry train station early in the
morning and I could pay for you to attend to see what
mathematics conferences are like. We could just leave
when you got bored. I've asked if there is going to be
a time which would be better to attend than any other.
I'll let you know what they say.

The program is already set, so not even I will speak,
but it would be an interesting experience for you guys
I think. Don't expect to understand a single word, and
be prepared for people to ask you what you are working
on in the coffee break, but if you just say you are an
undergrad from Warwick working on a computational
project with me and that you are really just there to
observe, you'll be fine.

If for some reason they don't have space for us, I'll
let you know. I did email and ask.

Bill.

In particular, one of the organisers of the conference, Gabor Wiese
has suggested we go along for the afternoon of Tuesday the 19th, since
the most implementation specific talks and SAGE related talks will be
on that day.

Here is the web page for the conference http://maths.pratum.net/CMF/

and if you go to "Programme", you'll see what's on that day.

I propose we get there in time for Nils-Peter's talk at 11:30am which
will be technical (so you can see what that's like) and stay for most
of the afternoon but before they break into groups and start working.

We can leave if it starts to get too boring. The most important thing
to keep in mind is that maths conferences are usually highly
specialised and so often even I won't know what is going on. But at
least the implementation talks will be talking about actual computer
algebra systems, which is something you all know something about by
now.

You don't have to come, but if you are available, please let me know
so I can tell Gabor how many will be coming.

Bill.

2008/8/8 William Hart <ha...@ya...>:
> Guys, which of you three will be around on 18th, 19th
> or 20th of August. This workshop on modular forms is
> happening in Bristol at that time.
>
> If you wanted to attend for a half day or full day, we
> could meet at Coventry train station early in the
> morning and I could pay for you to attend to see what
> mathematics conferences are like. We could just leave
> when you got bored. I've asked if there is going to be
> a time which would be better to attend than any other.
> I'll let you know what they say.
>
> The program is already set, so not even I will speak,
> but it would be an interesting experience for you guys
> I think. Don't expect to understand a single word, and
> be prepared for people to ask you what you are working
> on in the coffee break, but if you just say you are an
> undergrad from Warwick working on a computational
> project with me and that you are really just there to
> observe, you'll be fine.
>
> If for some reason they don't have space for us, I'll
> let you know. I did email and ask.
>
> Bill.
>
>
>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> flint-devel mailing list
> fli...@li...
> https://lists.sourceforge.net/lists/listinfo/flint-devel
>

I would quite like to go to this conference. I MIGHT take Monday off and go
back to Cornwall for a long weekend this weekend and then meet up with you
in bristol on Tuesday morning. I will have to look at train times and costs
first.

Peter

2008/8/8 Bill Hart <goo...@go...>

> In particular, one of the organisers of the conference, Gabor Wiese
> has suggested we go along for the afternoon of Tuesday the 19th, since
> the most implementation specific talks and SAGE related talks will be
> on that day.
>
> Here is the web page for the conference http://maths.pratum.net/CMF/
>
> and if you go to "Programme", you'll see what's on that day.
>
> I propose we get there in time for Nils-Peter's talk at 11:30am which
> will be technical (so you can see what that's like) and stay for most
> of the afternoon but before they break into groups and start working.
>
> We can leave if it starts to get too boring. The most important thing
> to keep in mind is that maths conferences are usually highly
> specialised and so often even I won't know what is going on. But at
> least the implementation talks will be talking about actual computer
> algebra systems, which is something you all know something about by
> now.
>
> You don't have to come, but if you are available, please let me know
> so I can tell Gabor how many will be coming.
>
> Bill.
>
> 2008/8/8 William Hart <ha...@ya...>:
> > Guys, which of you three will be around on 18th, 19th
> > or 20th of August. This workshop on modular forms is
> > happening in Bristol at that time.
> >
> > If you wanted to attend for a half day or full day, we
> > could meet at Coventry train station early in the
> > morning and I could pay for you to attend to see what
> > mathematics conferences are like. We could just leave
> > when you got bored. I've asked if there is going to be
> > a time which would be better to attend than any other.
> > I'll let you know what they say.
> >
> > The program is already set, so not even I will speak,
> > but it would be an interesting experience for you guys
> > I think. Don't expect to understand a single word, and
> > be prepared for people to ask you what you are working
> > on in the coffee break, but if you just say you are an
> > undergrad from Warwick working on a computational
> > project with me and that you are really just there to
> > observe, you'll be fine.
> >
> > If for some reason they don't have space for us, I'll
> > let you know. I did email and ask.
> >
> > Bill.
> >
> >
> >
> >
> > -------------------------------------------------------------------------
> > This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> > Build the coolest Linux based applications with Moblin SDK & win great
> prizes
> > Grand prize is a trip for two to an Open Source event anywhere in the
> world
> > http://moblin-contest.org/redirect.php?banner_id=100&url=/
> > _______________________________________________
> > flint-devel mailing list
> > fli...@li...
> > https://lists.sourceforge.net/lists/listinfo/flint-devel
> >
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> Build the coolest Linux based applications with Moblin SDK & win great
> prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> flint-devel mailing list
> fli...@li...
> https://lists.sourceforge.net/lists/listinfo/flint-devel
>

I'll be paying for the travel. 

Great that you'd like to go along. 

How about you Richard?

Bill.

--- Peter Shrimpton <ps...@gm...> wrote:

> I would quite like to go to this conference. I MIGHT
> take Monday off and go
> back to Cornwall for a long weekend this weekend and
> then meet up with you
> in bristol on Tuesday morning. I will have to look
> at train times and costs
> first.
> 
> Peter
> 
> 2008/8/8 Bill Hart <goo...@go...>
> 
> > In particular, one of the organisers of the
> conference, Gabor Wiese
> > has suggested we go along for the afternoon of
> Tuesday the 19th, since
> > the most implementation specific talks and SAGE
> related talks will be
> > on that day.
> >
> > Here is the web page for the conference
> http://maths.pratum.net/CMF/
> >
> > and if you go to "Programme", you'll see what's on
> that day.
> >
> > I propose we get there in time for Nils-Peter's
> talk at 11:30am which
> > will be technical (so you can see what that's
> like) and stay for most
> > of the afternoon but before they break into groups
> and start working.
> >
> > We can leave if it starts to get too boring. The
> most important thing
> > to keep in mind is that maths conferences are
> usually highly
> > specialised and so often even I won't know what is
> going on. But at
> > least the implementation talks will be talking
> about actual computer
> > algebra systems, which is something you all know
> something about by
> > now.
> >
> > You don't have to come, but if you are available,
> please let me know
> > so I can tell Gabor how many will be coming.
> >
> > Bill.
> >
> > 2008/8/8 William Hart <ha...@ya...>:
> > > Guys, which of you three will be around on 18th,
> 19th
> > > or 20th of August. This workshop on modular
> forms is
> > > happening in Bristol at that time.
> > >
> > > If you wanted to attend for a half day or full
> day, we
> > > could meet at Coventry train station early in
> the
> > > morning and I could pay for you to attend to see
> what
> > > mathematics conferences are like. We could just
> leave
> > > when you got bored. I've asked if there is going
> to be
> > > a time which would be better to attend than any
> other.
> > > I'll let you know what they say.
> > >
> > > The program is already set, so not even I will
> speak,
> > > but it would be an interesting experience for
> you guys
> > > I think. Don't expect to understand a single
> word, and
> > > be prepared for people to ask you what you are
> working
> > > on in the coffee break, but if you just say you
> are an
> > > undergrad from Warwick working on a
> computational
> > > project with me and that you are really just
> there to
> > > observe, you'll be fine.
> > >
> > > If for some reason they don't have space for us,
> I'll
> > > let you know. I did email and ask.
> > >
> > > Bill.
> > >
> > >
> > >
> > >
> > >
>
-------------------------------------------------------------------------
> > > This SF.Net email is sponsored by the Moblin
> Your Move Developer's
> > challenge
> > > Build the coolest Linux based applications with
> Moblin SDK & win great
> > prizes
> > > Grand prize is a trip for two to an Open Source
> event anywhere in the
> > world
> > >
>
http://moblin-contest.org/redirect.php?banner_id=100&url=/
> > > _______________________________________________
> > > flint-devel mailing list
> > > fli...@li...
> > >
>
https://lists.sourceforge.net/lists/listinfo/flint-devel
> > >
> >
> >
>
-------------------------------------------------------------------------
> > This SF.Net email is sponsored by the Moblin Your
> Move Developer's
> > challenge
> > Build the coolest Linux based applications with
> Moblin SDK & win great
> > prizes
> > Grand prize is a trip for two to an Open Source
> event anywhere in the world
> >
>
http://moblin-contest.org/redirect.php?banner_id=100&url=/
> > _______________________________________________
> > flint-devel mailing list
> > fli...@li...
> >
>
https://lists.sourceforge.net/lists/listinfo/flint-devel
> >
> >
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> Grand prize is a trip for two to an Open Source
> event anywhere in the world
>
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