https://wiki.fricas.org/

[Ralf Hemmecke]

Currently https://wiki.fricas.org/ cannot be reached from my place.

Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request

Reason: Error reading from remote server

Ralf

[Waldek Hebisch]

Currently wiki is sometimes running out of memory and in such case
it dies. I need to reconfigure it, but other things are more
urgent.

--
Waldek Hebisch

[Ralf Hemmecke]

Hi Waldek,

I suppose that you have compiled/edited

http://wiki.fricas.org/FriCASLibraryExamples

Is it actually safe to use https instead of http?

The following links are not mentioned on the above page.
What do you prefer? Should I leave them in examples.rst or rather
move them to the above list.

I would definitely like to have a **list** of relatively **good**
examples, not just wild programming attempts in the wiki, in other
words, fewer but didactic examples with documentation are better than
just some undocumented lines of code where it is hard to figure out what
the code wants to achieve.

Ralf

* `Status of Implementation of Risch's Integration algorithm
<https://wiki.fricas.org/RischImplementationStatus>`_

* `Integration
<https://wiki.fricas.org/FriCASIntegration>`_

* `Integration with special functions
<https://wiki.fricas.org/FriCASSpecialIntegration>`_

* `Guessing formulas for sequences
<https://wiki.fricas.org/GuessingFormulasForSequences>`_

* `Noncommutative Gröbner bases
<https://wiki.fricas.org/NoncommutativeGroebnerBases>`_

* `Noncommutative group ring over commuting polynomials
<https://wiki.fricas.org/NonCommutativeLaurentPolynomials>`_

* `Fun with functions
<https://wiki.fricas.org/FunWithFunctions>`_

* `Programming in SPAD
<https://wiki.fricas.org/ProgrammingSPAD>`_

* `An Introduction to Programming in FriCAS
<https://wiki.fricas.org/TutorialIntroductionToFriCAS>`_

[Waldek Hebisch]

On Wed, Mar 04, 2026 at 06:53:19AM +0100, 'Ralf Hemmecke' via FriCAS - computer algebra system wrote:
> Hi Waldek,
>
> I suppose that you have compiled/edited
>
> http://wiki.fricas.org/FriCASLibraryExamples
>
> Is it actually safe to use https instead of http?

I am not sure what you want to know here. When you connect to
wiki server you get essentially the some page regardless of using
http or https.

> The following links are not mentioned on the above page.
> What do you prefer? Should I leave them in examples.rst or rather
> move them to the above list.
>
> I would definitely like to have a **list** of relatively **good** examples,
> not just wild programming attempts in the wiki, in other words, fewer but
> didactic examples with documentation are better than just some undocumented
> lines of code where it is hard to figure out what the code wants to achieve.

Well, I tried to put some organization into wiki. 'FriCASLibraryExamples'
as name indicates is intended for examples of using library instead of
general tutorial or programming Spad. And examples that I added try
to explain what is happening, so IMO are reasonably good, didactic
examples. Some are of sort "see, this works", that is computation
in a sense is very simple and need almost no explanantion but
is a bit challenging for the system, but most tries to do things
that user may want to do, but are somewhat unobvious.

In general, FriCAS wiki has a problem that is is rather flat,
that is wiki user may easily get long list of pages, some just
of low quality, some good but on mixed things. 'FriCASLibraryExamples'
tries to be selective and on topic. I also tried to add few other
pages that group things, but there is still a lot of work to do.

A few comments about pages below:

> * `Status of Implementation of Risch's Integration algorithm
> <https://wiki.fricas.org/RischImplementationStatus>`_

That is in different spirit, it tries to explain what is implemented
and what remain unimplemented.

> * `Integration
> <https://wiki.fricas.org/FriCASIntegration>`_
>
> * `Integration with special functions
> <https://wiki.fricas.org/FriCASSpecialIntegration>`_

Those two show examples of integrals that FriCAS can handle, but
other systems have/had trouble to do. The 3 pages above can
give the user some idea about FriCAS capabilities, but they
almost exclusiely use 'integrate', so user is unlikely to
lern new skill from them.

> * `Guessing formulas for sequences
> <https://wiki.fricas.org/GuessingFormulasForSequences>`_
>
> * `Noncommutative Gröbner bases
> <https://wiki.fricas.org/NoncommutativeGroebnerBases>`_

Those two probably should be added to example page

> * `Noncommutative group ring over commuting polynomials
> <https://wiki.fricas.org/NonCommutativeLaurentPolynomials>`_

Maybe this one too.

> * `Fun with functions
> <https://wiki.fricas.org/FunWithFunctions>`_

This uses Spad, so is somewhat different.

> * `Programming in SPAD
> <https://wiki.fricas.org/ProgrammingSPAD>`_

The same.

> * `An Introduction to Programming in FriCAS
> <https://wiki.fricas.org/TutorialIntroductionToFriCAS>`_

This is a general tutorial, again different thing.

--
Waldek Hebisch

[Ralf Hemmecke]

I've updated my wip/docfix branch
https://github.com/fricas/fricas/pull/211

It's rendered at
https://hemmecke.github.io/fricas/

Hopefully there are no more changes needed so that I can combine the
commits and add them to the official tree.

Ralf

[Qian Yun]

On 3/5/26 8:09 AM, 'Ralf Hemmecke' via FriCAS - computer algebra system
wrote:

> I've updated my wip/docfix branch
> https://github.com/fricas/fricas/pull/211
>
> It's rendered at
> https://hemmecke.github.io/fricas/

In the table of contents, now it loses entry to api page,
I guess that is not intentional?

- Qian

[Ralf Hemmecke]

That is right. Terrible mistake. Thanks.
I've updated again.

[Waldek Hebisch]

On Thu, Mar 05, 2026 at 01:31:42AM +0100, 'Ralf Hemmecke' via FriCAS - computer algebra system wrote:
> That is right. Terrible mistake. Thanks.
> I've updated again.

Looks good, please commit.

--
Waldek Hebisch