Re: [sympy] In memory of Kalevi Suominen

2024-03-11 Thread Francesco Bonazzi
This is a true loss for our community. May he rest in peace. I'll always 
remember interacting with him on several pull requests, especially 
receiving advice from him. His knowledge of mathematics was impressive.

On Monday, March 11, 2024 at 9:21:08 p.m. UTC+1 abhinav@gmail.com wrote:

> May he rest in peace. I still remember interacting with him on several 
> pull requests back in 2020 when I was preparing for Gsoc. His knowledge 
> really helped me and he gave me several interesting ideas.
> I am really grateful to him for his help. I learned a lot from him. 
>
> Abhinav Anand
>
> On Sun, Mar 10, 2024 at 10:01 PM Oscar Benjamin  
> wrote:
>
>> Hi all SymPy community,
>>
>> It is with great sadness that I bring the news that Kalevi Suominen
>> (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
>> Risto passed on this news to me and some others by email yesterday.
>>
>> I never met Kalevi in person but we had many conversations online over
>> many years. Kalevi was an outstanding SymPy contributor and was
>> involved with the project long before me and so there are others here
>> who have known him much longer than I have. Kalevi guided many SymPy
>> contributors and supervised many GSOC students over many years.
>> Looking in the git history his earliest commit was from almost exactly
>> 10 years ago.
>>
>> Personally I learnt a huge amount from Kalevi and I am very grateful
>> for the time he took to teach me and others and to guide the project
>> generally. Kalevi's expertise in many areas of Mathematics and across
>> the full depth of many parts of the SymPy codebase was unmatched
>> within the community.
>>
>> Interacting through GitHub I guess that many of us did not realise
>> that Kalevi's health was in decline. He continued to be involved
>> including most recently reviewing a pull request just 6 weeks ago. A
>> few weeks ago he sent me some files with what he was most recently
>> working on but was no longer able to finish. I will try to complete
>> that work and submit it as Kalevi's final pull request.
>>
>> Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
>> that. Instead I invite those of us who have known Kalevi to share
>> their thoughts and memories here.
>>
>> Oscar
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "sympy" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to sympy+un...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/sympy/CAHVvXxTRWVQp_N_0%3DNnf-yBJwSu373sw-NB7UKuZCks2HTHGaA%40mail.gmail.com
>> .
>>
>

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Re: [sympy] In memory of Kalevi Suominen

2024-03-11 Thread Abhinav Anand
May he rest in peace. I still remember interacting with him on several pull
requests back in 2020 when I was preparing for Gsoc. His knowledge really
helped me and he gave me several interesting ideas.
I am really grateful to him for his help. I learned a lot from him.

Abhinav Anand

On Sun, Mar 10, 2024 at 10:01 PM Oscar Benjamin 
wrote:

> Hi all SymPy community,
>
> It is with great sadness that I bring the news that Kalevi Suominen
> (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
> Risto passed on this news to me and some others by email yesterday.
>
> I never met Kalevi in person but we had many conversations online over
> many years. Kalevi was an outstanding SymPy contributor and was
> involved with the project long before me and so there are others here
> who have known him much longer than I have. Kalevi guided many SymPy
> contributors and supervised many GSOC students over many years.
> Looking in the git history his earliest commit was from almost exactly
> 10 years ago.
>
> Personally I learnt a huge amount from Kalevi and I am very grateful
> for the time he took to teach me and others and to guide the project
> generally. Kalevi's expertise in many areas of Mathematics and across
> the full depth of many parts of the SymPy codebase was unmatched
> within the community.
>
> Interacting through GitHub I guess that many of us did not realise
> that Kalevi's health was in decline. He continued to be involved
> including most recently reviewing a pull request just 6 weeks ago. A
> few weeks ago he sent me some files with what he was most recently
> working on but was no longer able to finish. I will try to complete
> that work and submit it as Kalevi's final pull request.
>
> Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
> that. Instead I invite those of us who have known Kalevi to share
> their thoughts and memories here.
>
> Oscar
>
> --
> You received this message because you are subscribed to the Google Groups
> "sympy" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to sympy+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/sympy/CAHVvXxTRWVQp_N_0%3DNnf-yBJwSu373sw-NB7UKuZCks2HTHGaA%40mail.gmail.com
> .
>

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Re: [sympy] In memory of Kalevi Suominen

2024-03-11 Thread Amit Kumar
That's very sad to hear. I have vivid memories of interacting with him on 
some pull requests,
quite a while ago. He was very patient and was delight to communicate. I 
still remember, how
he helped me in this PR: https://github.com/sympy/sympy/pull/9291 I learnt 
a lot just by
communicating to him on that PR. He will be missed, may his soul rest in 
peace.

-
Amit

On Monday, March 11, 2024 at 7:50:47 PM UTC ankitd...@gmail.com wrote:

> May God grant peace to the departed soul. I missed the chance to learn 
> from him.
>
>
> Ankit
>
> On Tue, Mar 12, 2024 at 1:03 AM Peter Stahlecker  
> wrote:
>
>> A very graceful eulogy.
>>
>> Best regards,
>>
>> Peter Stahlecker
>>
>>
>> On Mon 11. Mar 2024 at 20:03, Aaron Meurer  wrote:
>>
>>> The passing of Kalevi Suominen truly a loss for the SymPy community.
>>>
>>> I had the honor of meeting Kalevi face to face once on a video call
>>> many years ago, but other than that, like everyone else, I primarily
>>> interacted with him online. Kalevi was always known in the SymPy
>>> community as the mathematics expert. As a retired professor of
>>> mathematics, his knowledge greatly assisted the development of some of
>>> the deep mathematical areas in SymPy, such as the polynomials and
>>> group theory modules. He was always available to give advice whenever
>>> I was unsure of some part of SymPy that was outside of my domain of
>>> expertise. I was always impressed by the breadth of his mathematical
>>> knowledge, as well as his skill as a Python programmer, a combination
>>> which can be rare to see.
>>>
>>> Yet despite being easily the most mathematically adept member of the
>>> community, he never lorded it over us, but always approached every
>>> interaction with kindness and humility. He considered himself to be an
>>> equal and as both a teacher and a learner. He can be a model for the
>>> sort of contributor and community member we should all strive to be,
>>> and our project was truly lucky to have him.
>>>
>>> I found some of the papers and books he wrote on Google Scholar
>>>
>>> https://scholar.google.com/scholar?hl=en&as_sdt=0%2C32&q=Kalevi+Suominen&oq=
>>> and MathSciNet (but this requires a subscription to view, which I do
>>> not have) https://mathscinet.ams.org/mathscinet/MRAuthorID/209375. He
>>> never mentioned this work, and it seems like most of it deals with
>>> technical mathematical areas which are not directly relevant to SymPy.
>>>
>>> I'll close on the following paragraphs from Kalevi himself, which I
>>> found in an old private email from 2018, on why he contributed to
>>> SymPy:
>>>
>>> > Being retired, I consider myself lucky as I can work with open code
>>> > on my own time with no pressure. It seems that many pensioners find
>>> > themselves a hobby. This is what suits me.
>>> >
>>> > I originally came across SymPy when searching for a mathematical
>>> > library for experimenting with some algorithms. It was (almost)
>>> > "love at first sight". It does not matter that the language, Python,
>>> > is not the most efficient one. It is easy to work with, and very much
>>> > readable. Readability is important to me as it helps in finding
>>> > errors. (That is what I had been doing for a great part of my
>>> > professional life.) It was also of importance to me that functions
>>> > would look familiar, sin(x), not Sin[x]. Instead of simply using
>>> > SymPy I finally found myself wanting to improve the library,
>>> > but that is another story.
>>>
>>> Aaron Meurer
>>>
>>>
>>> On Sun, Mar 10, 2024 at 10:31 AM Oscar Benjamin
>>>  wrote:
>>> >
>>> > Hi all SymPy community,
>>> >
>>> > It is with great sadness that I bring the news that Kalevi Suominen
>>> > (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
>>> > Risto passed on this news to me and some others by email yesterday.
>>> >
>>> > I never met Kalevi in person but we had many conversations online over
>>> > many years. Kalevi was an outstanding SymPy contributor and was
>>> > involved with the project long before me and so there are others here
>>> > who have known him much longer than I have. Kalevi guided many SymPy
>>> > contributors and supervised many GSOC students over many years.
>>> > Looking in the git history his earliest commit was from almost exactly
>>> > 10 years ago.
>>> >
>>> > Personally I learnt a huge amount from Kalevi and I am very grateful
>>> > for the time he took to teach me and others and to guide the project
>>> > generally. Kalevi's expertise in many areas of Mathematics and across
>>> > the full depth of many parts of the SymPy codebase was unmatched
>>> > within the community.
>>> >
>>> > Interacting through GitHub I guess that many of us did not realise
>>> > that Kalevi's health was in decline. He continued to be involved
>>> > including most recently reviewing a pull request just 6 weeks ago. A
>>> > few weeks ago he sent me some files with what he was most recently
>>> > working on but was no longer able to finish. I will try to complete

Re: [sympy] In memory of Kalevi Suominen

2024-03-11 Thread Ankit Kumar Singh
May God grant peace to the departed soul. I missed the chance to learn from
him.


Ankit

On Tue, Mar 12, 2024 at 1:03 AM Peter Stahlecker 
wrote:

> A very graceful eulogy.
>
> Best regards,
>
> Peter Stahlecker
>
>
> On Mon 11. Mar 2024 at 20:03, Aaron Meurer  wrote:
>
>> The passing of Kalevi Suominen truly a loss for the SymPy community.
>>
>> I had the honor of meeting Kalevi face to face once on a video call
>> many years ago, but other than that, like everyone else, I primarily
>> interacted with him online. Kalevi was always known in the SymPy
>> community as the mathematics expert. As a retired professor of
>> mathematics, his knowledge greatly assisted the development of some of
>> the deep mathematical areas in SymPy, such as the polynomials and
>> group theory modules. He was always available to give advice whenever
>> I was unsure of some part of SymPy that was outside of my domain of
>> expertise. I was always impressed by the breadth of his mathematical
>> knowledge, as well as his skill as a Python programmer, a combination
>> which can be rare to see.
>>
>> Yet despite being easily the most mathematically adept member of the
>> community, he never lorded it over us, but always approached every
>> interaction with kindness and humility. He considered himself to be an
>> equal and as both a teacher and a learner. He can be a model for the
>> sort of contributor and community member we should all strive to be,
>> and our project was truly lucky to have him.
>>
>> I found some of the papers and books he wrote on Google Scholar
>>
>> https://scholar.google.com/scholar?hl=en&as_sdt=0%2C32&q=Kalevi+Suominen&oq=
>> and MathSciNet (but this requires a subscription to view, which I do
>> not have) https://mathscinet.ams.org/mathscinet/MRAuthorID/209375. He
>> never mentioned this work, and it seems like most of it deals with
>> technical mathematical areas which are not directly relevant to SymPy.
>>
>> I'll close on the following paragraphs from Kalevi himself, which I
>> found in an old private email from 2018, on why he contributed to
>> SymPy:
>>
>> > Being retired, I consider myself lucky as I can work with open code
>> > on my own time with no pressure. It seems that many pensioners find
>> > themselves a hobby. This is what suits me.
>> >
>> > I originally came across SymPy when searching for a mathematical
>> > library for experimenting with some algorithms. It was (almost)
>> > "love at first sight". It does not matter that the language, Python,
>> > is not the most efficient one. It is easy to work with, and very much
>> > readable. Readability is important to me as it helps in finding
>> > errors. (That is what I had been doing for a great part of my
>> > professional life.) It was also of importance to me that functions
>> > would look familiar, sin(x), not Sin[x]. Instead of simply using
>> > SymPy I finally found myself wanting to improve the library,
>> > but that is another story.
>>
>> Aaron Meurer
>>
>>
>> On Sun, Mar 10, 2024 at 10:31 AM Oscar Benjamin
>>  wrote:
>> >
>> > Hi all SymPy community,
>> >
>> > It is with great sadness that I bring the news that Kalevi Suominen
>> > (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
>> > Risto passed on this news to me and some others by email yesterday.
>> >
>> > I never met Kalevi in person but we had many conversations online over
>> > many years. Kalevi was an outstanding SymPy contributor and was
>> > involved with the project long before me and so there are others here
>> > who have known him much longer than I have. Kalevi guided many SymPy
>> > contributors and supervised many GSOC students over many years.
>> > Looking in the git history his earliest commit was from almost exactly
>> > 10 years ago.
>> >
>> > Personally I learnt a huge amount from Kalevi and I am very grateful
>> > for the time he took to teach me and others and to guide the project
>> > generally. Kalevi's expertise in many areas of Mathematics and across
>> > the full depth of many parts of the SymPy codebase was unmatched
>> > within the community.
>> >
>> > Interacting through GitHub I guess that many of us did not realise
>> > that Kalevi's health was in decline. He continued to be involved
>> > including most recently reviewing a pull request just 6 weeks ago. A
>> > few weeks ago he sent me some files with what he was most recently
>> > working on but was no longer able to finish. I will try to complete
>> > that work and submit it as Kalevi's final pull request.
>> >
>> > Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
>> > that. Instead I invite those of us who have known Kalevi to share
>> > their thoughts and memories here.
>> >
>> > Oscar
>> >
>> > --
>> > You received this message because you are subscribed to the Google
>> Groups "sympy" group.
>> > To unsubscribe from this group and stop receiving emails from it, send
>> an email to sympy+unsubscr...@googlegroups.com.
>> > To view this discussion on the web v

Re: [sympy] In memory of Kalevi Suominen

2024-03-11 Thread Peter Stahlecker
A very graceful eulogy.

Best regards,

Peter Stahlecker


On Mon 11. Mar 2024 at 20:03, Aaron Meurer  wrote:

> The passing of Kalevi Suominen truly a loss for the SymPy community.
>
> I had the honor of meeting Kalevi face to face once on a video call
> many years ago, but other than that, like everyone else, I primarily
> interacted with him online. Kalevi was always known in the SymPy
> community as the mathematics expert. As a retired professor of
> mathematics, his knowledge greatly assisted the development of some of
> the deep mathematical areas in SymPy, such as the polynomials and
> group theory modules. He was always available to give advice whenever
> I was unsure of some part of SymPy that was outside of my domain of
> expertise. I was always impressed by the breadth of his mathematical
> knowledge, as well as his skill as a Python programmer, a combination
> which can be rare to see.
>
> Yet despite being easily the most mathematically adept member of the
> community, he never lorded it over us, but always approached every
> interaction with kindness and humility. He considered himself to be an
> equal and as both a teacher and a learner. He can be a model for the
> sort of contributor and community member we should all strive to be,
> and our project was truly lucky to have him.
>
> I found some of the papers and books he wrote on Google Scholar
>
> https://scholar.google.com/scholar?hl=en&as_sdt=0%2C32&q=Kalevi+Suominen&oq=
> and MathSciNet (but this requires a subscription to view, which I do
> not have) https://mathscinet.ams.org/mathscinet/MRAuthorID/209375. He
> never mentioned this work, and it seems like most of it deals with
> technical mathematical areas which are not directly relevant to SymPy.
>
> I'll close on the following paragraphs from Kalevi himself, which I
> found in an old private email from 2018, on why he contributed to
> SymPy:
>
> > Being retired, I consider myself lucky as I can work with open code
> > on my own time with no pressure. It seems that many pensioners find
> > themselves a hobby. This is what suits me.
> >
> > I originally came across SymPy when searching for a mathematical
> > library for experimenting with some algorithms. It was (almost)
> > "love at first sight". It does not matter that the language, Python,
> > is not the most efficient one. It is easy to work with, and very much
> > readable. Readability is important to me as it helps in finding
> > errors. (That is what I had been doing for a great part of my
> > professional life.) It was also of importance to me that functions
> > would look familiar, sin(x), not Sin[x]. Instead of simply using
> > SymPy I finally found myself wanting to improve the library,
> > but that is another story.
>
> Aaron Meurer
>
>
> On Sun, Mar 10, 2024 at 10:31 AM Oscar Benjamin
>  wrote:
> >
> > Hi all SymPy community,
> >
> > It is with great sadness that I bring the news that Kalevi Suominen
> > (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
> > Risto passed on this news to me and some others by email yesterday.
> >
> > I never met Kalevi in person but we had many conversations online over
> > many years. Kalevi was an outstanding SymPy contributor and was
> > involved with the project long before me and so there are others here
> > who have known him much longer than I have. Kalevi guided many SymPy
> > contributors and supervised many GSOC students over many years.
> > Looking in the git history his earliest commit was from almost exactly
> > 10 years ago.
> >
> > Personally I learnt a huge amount from Kalevi and I am very grateful
> > for the time he took to teach me and others and to guide the project
> > generally. Kalevi's expertise in many areas of Mathematics and across
> > the full depth of many parts of the SymPy codebase was unmatched
> > within the community.
> >
> > Interacting through GitHub I guess that many of us did not realise
> > that Kalevi's health was in decline. He continued to be involved
> > including most recently reviewing a pull request just 6 weeks ago. A
> > few weeks ago he sent me some files with what he was most recently
> > working on but was no longer able to finish. I will try to complete
> > that work and submit it as Kalevi's final pull request.
> >
> > Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
> > that. Instead I invite those of us who have known Kalevi to share
> > their thoughts and memories here.
> >
> > Oscar
> >
> > --
> > You received this message because you are subscribed to the Google
> Groups "sympy" group.
> > To unsubscribe from this group and stop receiving emails from it, send
> an email to sympy+unsubscr...@googlegroups.com.
> > To view this discussion on the web visit
> https://groups.google.com/d/msgid/sympy/CAHVvXxTRWVQp_N_0%3DNnf-yBJwSu373sw-NB7UKuZCks2HTHGaA%40mail.gmail.com
> .
>
> --
> You received this message because you are subscribed to the Google Groups
> "sympy" group.
> To unsubscribe from this group

Re: [sympy] In memory of Kalevi Suominen

2024-03-11 Thread Aaron Meurer
The passing of Kalevi Suominen truly a loss for the SymPy community.

I had the honor of meeting Kalevi face to face once on a video call
many years ago, but other than that, like everyone else, I primarily
interacted with him online. Kalevi was always known in the SymPy
community as the mathematics expert. As a retired professor of
mathematics, his knowledge greatly assisted the development of some of
the deep mathematical areas in SymPy, such as the polynomials and
group theory modules. He was always available to give advice whenever
I was unsure of some part of SymPy that was outside of my domain of
expertise. I was always impressed by the breadth of his mathematical
knowledge, as well as his skill as a Python programmer, a combination
which can be rare to see.

Yet despite being easily the most mathematically adept member of the
community, he never lorded it over us, but always approached every
interaction with kindness and humility. He considered himself to be an
equal and as both a teacher and a learner. He can be a model for the
sort of contributor and community member we should all strive to be,
and our project was truly lucky to have him.

I found some of the papers and books he wrote on Google Scholar
https://scholar.google.com/scholar?hl=en&as_sdt=0%2C32&q=Kalevi+Suominen&oq=
and MathSciNet (but this requires a subscription to view, which I do
not have) https://mathscinet.ams.org/mathscinet/MRAuthorID/209375. He
never mentioned this work, and it seems like most of it deals with
technical mathematical areas which are not directly relevant to SymPy.

I'll close on the following paragraphs from Kalevi himself, which I
found in an old private email from 2018, on why he contributed to
SymPy:

> Being retired, I consider myself lucky as I can work with open code
> on my own time with no pressure. It seems that many pensioners find
> themselves a hobby. This is what suits me.
>
> I originally came across SymPy when searching for a mathematical
> library for experimenting with some algorithms. It was (almost)
> "love at first sight". It does not matter that the language, Python,
> is not the most efficient one. It is easy to work with, and very much
> readable. Readability is important to me as it helps in finding
> errors. (That is what I had been doing for a great part of my
> professional life.) It was also of importance to me that functions
> would look familiar, sin(x), not Sin[x]. Instead of simply using
> SymPy I finally found myself wanting to improve the library,
> but that is another story.

Aaron Meurer


On Sun, Mar 10, 2024 at 10:31 AM Oscar Benjamin
 wrote:
>
> Hi all SymPy community,
>
> It is with great sadness that I bring the news that Kalevi Suominen
> (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
> Risto passed on this news to me and some others by email yesterday.
>
> I never met Kalevi in person but we had many conversations online over
> many years. Kalevi was an outstanding SymPy contributor and was
> involved with the project long before me and so there are others here
> who have known him much longer than I have. Kalevi guided many SymPy
> contributors and supervised many GSOC students over many years.
> Looking in the git history his earliest commit was from almost exactly
> 10 years ago.
>
> Personally I learnt a huge amount from Kalevi and I am very grateful
> for the time he took to teach me and others and to guide the project
> generally. Kalevi's expertise in many areas of Mathematics and across
> the full depth of many parts of the SymPy codebase was unmatched
> within the community.
>
> Interacting through GitHub I guess that many of us did not realise
> that Kalevi's health was in decline. He continued to be involved
> including most recently reviewing a pull request just 6 weeks ago. A
> few weeks ago he sent me some files with what he was most recently
> working on but was no longer able to finish. I will try to complete
> that work and submit it as Kalevi's final pull request.
>
> Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
> that. Instead I invite those of us who have known Kalevi to share
> their thoughts and memories here.
>
> Oscar
>
> --
> You received this message because you are subscribed to the Google Groups 
> "sympy" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to sympy+unsubscr...@googlegroups.com.
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/sympy/CAHVvXxTRWVQp_N_0%3DNnf-yBJwSu373sw-NB7UKuZCks2HTHGaA%40mail.gmail.com.

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Re: [sympy] In memory of Kalevi Suominen

2024-03-11 Thread Oscar Benjamin
Hi Jason,

I checked with Kalevi's son just to be sure and yes, that is the same Kalevi.

He completed his PhD in 1966:
https://www.genealogy.math.ndsu.nodak.edu/id.php?id=20539&fChrono=1

Then after a long career teaching Mathematics at the University of
Helsinki he got involved with SymPy development as a retired Maths
professor. Given his breadth of knowledge I had always assumed that
his background was something like this although I never thought to go
and look it up.

Oscar

On Sun, 10 Mar 2024 at 16:59, Jason Moore  wrote:
>
> Hi Oscar,
>
> That is very sad to hear. I did not know Kalevi other than through SymPy but 
> it looks like he was an Emeritus mathematics professor from the University of 
> Helsinki. This page shows a photo of him:
>
> https://wiki.helsinki.fi/xwiki/bin/view/mathstatHenkilokunta/Henkil%C3%B6t/Suominen%2C%20Kalevi/
>
> His contributions to SymPy will live on. I believe he mentored GSoC students. 
> If anyone knows more about Kalevi and can share, that would be much 
> appreciated.
>
> Sincerely,
>
> Jason
> moorepants.info
> +01 530-601-9791
>
>
> On Sun, Mar 10, 2024 at 5:31 PM Oscar Benjamin  
> wrote:
>>
>> Hi all SymPy community,
>>
>> It is with great sadness that I bring the news that Kalevi Suominen
>> (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
>> Risto passed on this news to me and some others by email yesterday.
>>
>> I never met Kalevi in person but we had many conversations online over
>> many years. Kalevi was an outstanding SymPy contributor and was
>> involved with the project long before me and so there are others here
>> who have known him much longer than I have. Kalevi guided many SymPy
>> contributors and supervised many GSOC students over many years.
>> Looking in the git history his earliest commit was from almost exactly
>> 10 years ago.
>>
>> Personally I learnt a huge amount from Kalevi and I am very grateful
>> for the time he took to teach me and others and to guide the project
>> generally. Kalevi's expertise in many areas of Mathematics and across
>> the full depth of many parts of the SymPy codebase was unmatched
>> within the community.
>>
>> Interacting through GitHub I guess that many of us did not realise
>> that Kalevi's health was in decline. He continued to be involved
>> including most recently reviewing a pull request just 6 weeks ago. A
>> few weeks ago he sent me some files with what he was most recently
>> working on but was no longer able to finish. I will try to complete
>> that work and submit it as Kalevi's final pull request.
>>
>> Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
>> that. Instead I invite those of us who have known Kalevi to share
>> their thoughts and memories here.
>>
>> Oscar
>>
>> --
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>> "sympy" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to sympy+unsubscr...@googlegroups.com.
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>> https://groups.google.com/d/msgid/sympy/CAHVvXxTRWVQp_N_0%3DNnf-yBJwSu373sw-NB7UKuZCks2HTHGaA%40mail.gmail.com.
>
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Re: [sympy] In memory of Kalevi Suominen

2024-03-10 Thread Jason Moore
Hi Oscar,

That is very sad to hear. I did not know Kalevi other than through SymPy
but it looks like he was an Emeritus mathematics professor from the
University of Helsinki. This page shows a photo of him:

https://wiki.helsinki.fi/xwiki/bin/view/mathstatHenkilokunta/Henkil%C3%B6t/Suominen%2C%20Kalevi/

His contributions to SymPy will live on. I believe he mentored GSoC
students. If anyone knows more about Kalevi and can share, that would be
much appreciated.

Sincerely,

Jason
moorepants.info
+01 530-601-9791


On Sun, Mar 10, 2024 at 5:31 PM Oscar Benjamin 
wrote:

> Hi all SymPy community,
>
> It is with great sadness that I bring the news that Kalevi Suominen
> (@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
> Risto passed on this news to me and some others by email yesterday.
>
> I never met Kalevi in person but we had many conversations online over
> many years. Kalevi was an outstanding SymPy contributor and was
> involved with the project long before me and so there are others here
> who have known him much longer than I have. Kalevi guided many SymPy
> contributors and supervised many GSOC students over many years.
> Looking in the git history his earliest commit was from almost exactly
> 10 years ago.
>
> Personally I learnt a huge amount from Kalevi and I am very grateful
> for the time he took to teach me and others and to guide the project
> generally. Kalevi's expertise in many areas of Mathematics and across
> the full depth of many parts of the SymPy codebase was unmatched
> within the community.
>
> Interacting through GitHub I guess that many of us did not realise
> that Kalevi's health was in decline. He continued to be involved
> including most recently reviewing a pull request just 6 weeks ago. A
> few weeks ago he sent me some files with what he was most recently
> working on but was no longer able to finish. I will try to complete
> that work and submit it as Kalevi's final pull request.
>
> Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
> that. Instead I invite those of us who have known Kalevi to share
> their thoughts and memories here.
>
> Oscar
>
> --
> You received this message because you are subscribed to the Google Groups
> "sympy" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to sympy+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/sympy/CAHVvXxTRWVQp_N_0%3DNnf-yBJwSu373sw-NB7UKuZCks2HTHGaA%40mail.gmail.com
> .
>

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[sympy] In memory of Kalevi Suominen

2024-03-10 Thread Oscar Benjamin
Hi all SymPy community,

It is with great sadness that I bring the news that Kalevi Suominen
(@jksuom on GitHub) passed away on the 4th of March. Kalevi's son
Risto passed on this news to me and some others by email yesterday.

I never met Kalevi in person but we had many conversations online over
many years. Kalevi was an outstanding SymPy contributor and was
involved with the project long before me and so there are others here
who have known him much longer than I have. Kalevi guided many SymPy
contributors and supervised many GSOC students over many years.
Looking in the git history his earliest commit was from almost exactly
10 years ago.

Personally I learnt a huge amount from Kalevi and I am very grateful
for the time he took to teach me and others and to guide the project
generally. Kalevi's expertise in many areas of Mathematics and across
the full depth of many parts of the SymPy codebase was unmatched
within the community.

Interacting through GitHub I guess that many of us did not realise
that Kalevi's health was in decline. He continued to be involved
including most recently reviewing a pull request just 6 weeks ago. A
few weeks ago he sent me some files with what he was most recently
working on but was no longer able to finish. I will try to complete
that work and submit it as Kalevi's final pull request.

Kalevi's passing is a huge loss to SymPy but I don't want to dwell on
that. Instead I invite those of us who have known Kalevi to share
their thoughts and memories here.

Oscar

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