Re: link for clojure programs

2013-05-06 Thread Zack Maril
Once I had really cut your teeth on the introductory materials, I found 
that reading parts of the Clojure source code can be helpful. 

https://github.com/clojure/clojure/blob/master/src/clj/clojure/core.clj
This one file defines over half of the functions you'll be working with day 
to day. There are patches of code here and there that are very readable and 
patches that are still way beyond me. No matter what my skill level has 
been, every time I open that file up I learn something new about the 
language, whether it is a new function, a new language feature, or just a 
new way of thinking about how to implement certain ideas. It's not the 
right way to get started today, but reading the source has been one of the 
ways I've felt I've leveled up with Clojure the fastest.
 
-Zack

On Monday, May 6, 2013 8:45:27 PM UTC+4, Mimmo Cosenza wrote:
>
> In some way, what we miss is a book on co-recursion (the dual of 
> recursion). In my experience in teaching clojure to mathematicians, they 
> very naturally get co-recursion, because they really know how to be elegant 
> and concise. 
>
> Is there any very good online resource on co-recursion with clojure?
>
> thanks
>
> Mimmo
>
>
>
> On May 6, 2013, at 5:03 PM, Niels van Klaveren wrote:
>
> +1 to Clinton's advice. If anything, SICP et al teach the wrong habits fo 
> working with Clojure.
>
> Christophe Grand, one of the authors of the aforementioned "Clojure 
> Programming" book, held a great presentation 
> called "You aren't gonna need 
> it" 
> at the first meetup of the The Hague/Rotterdam Clojure group. In it he gave 
> some solid advice what you should concentrate on (and what not) when 
> learning Clojure.
>
> Learning the core (higher order) functions of Clojure is paramount, and I 
> found working through the 4clojure problems  a 
> great way to the rationale behind and working with them.  
>
> If you need practical help with setting up your Clojure development 
> environment, or other indepth tutorials for specific parts of the language, 
> clojure-doc.org is great. It lacks a bit in overview, and hasn't got the 
> narrative qualities of a book for guiding you from one subject to another 
> though, so I'd recommend one of 
> themas well.
>
>  Clojuredocs.org is great as cheat-sheet and for short examples.
>
> my experience, being inculcated with Scheme will make your Clojure 
>> code look insane, as idiomatic Clojure (insomuch as there is such a 
>> thing) doesn't have functions nested with a butt-load of anonymous 
>> functions. 
>>
>> http://clojure-doc.org is great and you should go there first. Don't 
>> freak out about your environment just yet. Use whatever you use now, 
>> and if you're lucky enough to use Vim or Emacs, it'll work for the 
>> future, too. 
>>
>> Clojure Programming is, in my opinion, the best book out there right 
>> now for Clojure. Check it out if you get the chance. 
>>
>> Do not rush into refs, atoms, agents, or any of that stuff. Just right 
>> some simple code, learn it, and then expand. I've been writing Clojure 
>> code for about 15 or so months, with the last six being every day 
>> professionally and I still have never created a protocol. 
>>
>> Good luck! Clojure is no harder than Python, C#, or whatever you come 
>> from, and is totally rewarding. Learning it will be a pleasure. 
>>
>> Best, 
>> Clinton 
>>
>>
>> On Mon, May 6, 2013 at 6:11 AM, Catonano  wrote: 
>> > 2013/5/4 nre...@yahoo.com  
>> >> 
>> >> Can anybody give me a link/websites of codes for BEGINNERS FOR 
>> CLOJURE? 
>> >> thanks a lot... 
>> > 
>> > 
>> > There are tons of resources on line. 
>> > 
>> > But in my experience, the famous MIT course  with Abelsson and Sussman 
>> is a 
>> > must. It´s about Scheme, not Clojure, but it´s important anyway. 
>> > 
>> > There is also a course on youtube on Scheme by another professor, from 
>> > Stanford. That can be important too. 
>> > 
>> > Then, you have to set up an enviroinment. That´s not a subtlety, it´s a 
>> main 
>> > concern. 
>> > 
>> > As for that, I strongly suggest the Peepcode footage about Emacs and 
>> then 
>> > live-emacs ( https://github.com/overtone/emacs-live ) 
>> > 
>> > On my shameful github account I have a little watered down game life 
>> with a 
>> > little visual layer made with Quilt. So you can see your bot filling 
>> square 
>> > tiles according to your "strategy". 
>> > 
>> > It was an exercise from the lambda-next clojure training event. I´m not 
>> sure 
>> > about its license but I don´t think the guys are gonna object ;-) 
>> > 
>> > It uses refs and can be a good first step in learning. The 
>> multithreading 
>> > stuff is specific to Clojure on the Jvm, I think. It has no readme file 
>> but 
>> > I could give you a couple of directions in order to have it up and 
>> running. 
>> > 
>> > That´s

Re: link for clojure programs

2013-05-06 Thread Abraham Varghese

Watch Chas Emerick video ...

Read Clojure Programming by Chas



On Saturday, May 4, 2013 11:31:48 AM UTC+5:30, nre...@yahoo.com wrote:
>
> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE? 
> thanks a lot...
>

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.




Re: link for clojure programs

2013-05-06 Thread Giacomo Cosenza
In some way, what we miss is a book on co-recursion (the dual of recursion). In 
my experience in teaching clojure to mathematicians, they very naturally get 
co-recursion, because they really know how to be elegant and concise. 

Is there any very good online resource on co-recursion with clojure?

thanks

Mimmo



On May 6, 2013, at 5:03 PM, Niels van Klaveren wrote:

> +1 to Clinton's advice. If anything, SICP et al teach the wrong habits fo 
> working with Clojure.
> 
> Christophe Grand, one of the authors of the aforementioned "Clojure 
> Programming" book, held a great presentation called "You aren't gonna need 
> it" at the first meetup of the The Hague/Rotterdam Clojure group. In it he 
> gave some solid advice what you should concentrate on (and what not) when 
> learning Clojure.
> 
> Learning the core (higher order) functions of Clojure is paramount, and I 
> found working through the 4clojure problems a great way to the rationale 
> behind and working with them.  
> 
> If you need practical help with setting up your Clojure development 
> environment, or other indepth tutorials for specific parts of the language, 
> clojure-doc.org is great. It lacks a bit in overview, and hasn't got the 
> narrative qualities of a book for guiding you from one subject to another 
> though, so I'd recommend one of them as well.
> 
>  Clojuredocs.org is great as cheat-sheet and for short examples.
> 
> my experience, being inculcated with Scheme will make your Clojure 
> code look insane, as idiomatic Clojure (insomuch as there is such a 
> thing) doesn't have functions nested with a butt-load of anonymous 
> functions. 
> 
> http://clojure-doc.org is great and you should go there first. Don't 
> freak out about your environment just yet. Use whatever you use now, 
> and if you're lucky enough to use Vim or Emacs, it'll work for the 
> future, too. 
> 
> Clojure Programming is, in my opinion, the best book out there right 
> now for Clojure. Check it out if you get the chance. 
> 
> Do not rush into refs, atoms, agents, or any of that stuff. Just right 
> some simple code, learn it, and then expand. I've been writing Clojure 
> code for about 15 or so months, with the last six being every day 
> professionally and I still have never created a protocol. 
> 
> Good luck! Clojure is no harder than Python, C#, or whatever you come 
> from, and is totally rewarding. Learning it will be a pleasure. 
> 
> Best, 
> Clinton 
> 
> 
> On Mon, May 6, 2013 at 6:11 AM, Catonano  wrote: 
> > 2013/5/4 nre...@yahoo.com  
> >> 
> >> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE? 
> >> thanks a lot... 
> > 
> > 
> > There are tons of resources on line. 
> > 
> > But in my experience, the famous MIT course  with Abelsson and Sussman is a 
> > must. It´s about Scheme, not Clojure, but it´s important anyway. 
> > 
> > There is also a course on youtube on Scheme by another professor, from 
> > Stanford. That can be important too. 
> > 
> > Then, you have to set up an enviroinment. That´s not a subtlety, it´s a 
> > main 
> > concern. 
> > 
> > As for that, I strongly suggest the Peepcode footage about Emacs and then 
> > live-emacs ( https://github.com/overtone/emacs-live ) 
> > 
> > On my shameful github account I have a little watered down game life with a 
> > little visual layer made with Quilt. So you can see your bot filling square 
> > tiles according to your "strategy". 
> > 
> > It was an exercise from the lambda-next clojure training event. I´m not 
> > sure 
> > about its license but I don´t think the guys are gonna object ;-) 
> > 
> > It uses refs and can be a good first step in learning. The multithreading 
> > stuff is specific to Clojure on the Jvm, I think. It has no readme file but 
> > I could give you a couple of directions in order to have it up and running. 
> > 
> > That´s all comes to m mind at the moment ;-) 
> > 
> > Bye 
> > Catonano 
> > 
> > -- 
> > -- 
> > You received this message because you are subscribed to the Google 
> > Groups "Clojure" group. 
> > To post to this group, send email to clo...@googlegroups.com 
> > Note that posts from new members are moderated - please be patient with 
> > your 
> > first post. 
> > To unsubscribe from this group, send email to 
> > clojure+u...@googlegroups.com 
> > For more options, visit this group at 
> > http://groups.google.com/group/clojure?hl=en 
> > --- 
> > You received this message because you are subscribed to the Google Groups 
> > "Clojure" group. 
> > To unsubscribe from this group and stop receiving emails from it, send an 
> > email to clojure+u...@googlegroups.com. 
> > For more options, visit https://groups.google.com/groups/opt_out. 
> > 
> > 
> 
> -- 
> -- 
> You received this message because you are subscribed to the Google
> Groups "Clojure" group.
> To post to this group, send email to clojure@googlegroups.com
> Note that posts from new members are moderated - please be patient with your 
> first post.
> To unsubscrib

Re: link for clojure programs

2013-05-06 Thread Niels van Klaveren
+1 to Clinton's advice. If anything, SICP et al teach the wrong habits fo 
working with Clojure.

Christophe Grand, one of the authors of the aforementioned "Clojure 
Programming" book, held a great presentation 
called "You aren't gonna need 
it" 
at the first meetup of the The Hague/Rotterdam Clojure group. In it he gave 
some solid advice what you should concentrate on (and what not) when 
learning Clojure.

Learning the core (higher order) functions of Clojure is paramount, and I 
found working through the 4clojure problems  a 
great way to the rationale behind and working with them.  

If you need practical help with setting up your Clojure development 
environment, or other indepth tutorials for specific parts of the language, 
clojure-doc.org is great. It lacks a bit in overview, and hasn't got the 
narrative qualities of a book for guiding you from one subject to another 
though, so I'd recommend one of 
themas well.

 Clojuredocs.org is great as cheat-sheet and for short examples.

my experience, being inculcated with Scheme will make your Clojure 
> code look insane, as idiomatic Clojure (insomuch as there is such a 
> thing) doesn't have functions nested with a butt-load of anonymous 
> functions. 
>
> http://clojure-doc.org is great and you should go there first. Don't 
> freak out about your environment just yet. Use whatever you use now, 
> and if you're lucky enough to use Vim or Emacs, it'll work for the 
> future, too. 
>
> Clojure Programming is, in my opinion, the best book out there right 
> now for Clojure. Check it out if you get the chance. 
>
> Do not rush into refs, atoms, agents, or any of that stuff. Just right 
> some simple code, learn it, and then expand. I've been writing Clojure 
> code for about 15 or so months, with the last six being every day 
> professionally and I still have never created a protocol. 
>
> Good luck! Clojure is no harder than Python, C#, or whatever you come 
> from, and is totally rewarding. Learning it will be a pleasure. 
>
> Best, 
> Clinton 
>
>
> On Mon, May 6, 2013 at 6:11 AM, Catonano > 
> wrote: 
> > 2013/5/4 nre...@yahoo.com  > 
>
> >> 
> >> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE? 
> >> thanks a lot... 
> > 
> > 
> > There are tons of resources on line. 
> > 
> > But in my experience, the famous MIT course  with Abelsson and Sussman 
> is a 
> > must. It´s about Scheme, not Clojure, but it´s important anyway. 
> > 
> > There is also a course on youtube on Scheme by another professor, from 
> > Stanford. That can be important too. 
> > 
> > Then, you have to set up an enviroinment. That´s not a subtlety, it´s a 
> main 
> > concern. 
> > 
> > As for that, I strongly suggest the Peepcode footage about Emacs and 
> then 
> > live-emacs ( https://github.com/overtone/emacs-live ) 
> > 
> > On my shameful github account I have a little watered down game life 
> with a 
> > little visual layer made with Quilt. So you can see your bot filling 
> square 
> > tiles according to your "strategy". 
> > 
> > It was an exercise from the lambda-next clojure training event. I´m not 
> sure 
> > about its license but I don´t think the guys are gonna object ;-) 
> > 
> > It uses refs and can be a good first step in learning. The 
> multithreading 
> > stuff is specific to Clojure on the Jvm, I think. It has no readme file 
> but 
> > I could give you a couple of directions in order to have it up and 
> running. 
> > 
> > That´s all comes to m mind at the moment ;-) 
> > 
> > Bye 
> > Catonano 
> > 
> > -- 
> > -- 
> > You received this message because you are subscribed to the Google 
> > Groups "Clojure" group. 
> > To post to this group, send email to clo...@googlegroups.com 
> > Note that posts from new members are moderated - please be patient with 
> your 
> > first post. 
> > To unsubscribe from this group, send email to 
> > clojure+u...@googlegroups.com  
> > For more options, visit this group at 
> > http://groups.google.com/group/clojure?hl=en 
> > --- 
> > You received this message because you are subscribed to the Google 
> Groups 
> > "Clojure" group. 
> > To unsubscribe from this group and stop receiving emails from it, send 
> an 
> > email to clojure+u...@googlegroups.com . 
> > For more options, visit https://groups.google.com/groups/opt_out. 
> > 
> > 
>

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Cl

Re: link for clojure programs

2013-05-06 Thread Clinton Dreisbach
Holy smokes, please ignore the previous email on this thread. You most
certainly do not need to read SICP (the MIT course mentioned), and in
my experience, being inculcated with Scheme will make your Clojure
code look insane, as idiomatic Clojure (insomuch as there is such a
thing) doesn't have functions nested with a butt-load of anonymous
functions.

http://clojure-doc.org is great and you should go there first. Don't
freak out about your environment just yet. Use whatever you use now,
and if you're lucky enough to use Vim or Emacs, it'll work for the
future, too.

Clojure Programming is, in my opinion, the best book out there right
now for Clojure. Check it out if you get the chance.

Do not rush into refs, atoms, agents, or any of that stuff. Just right
some simple code, learn it, and then expand. I've been writing Clojure
code for about 15 or so months, with the last six being every day
professionally and I still have never created a protocol.

Good luck! Clojure is no harder than Python, C#, or whatever you come
from, and is totally rewarding. Learning it will be a pleasure.

Best,
Clinton


On Mon, May 6, 2013 at 6:11 AM, Catonano  wrote:
> 2013/5/4 nrel...@yahoo.com 
>>
>> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE?
>> thanks a lot...
>
>
> There are tons of resources on line.
>
> But in my experience, the famous MIT course  with Abelsson and Sussman is a
> must. It´s about Scheme, not Clojure, but it´s important anyway.
>
> There is also a course on youtube on Scheme by another professor, from
> Stanford. That can be important too.
>
> Then, you have to set up an enviroinment. That´s not a subtlety, it´s a main
> concern.
>
> As for that, I strongly suggest the Peepcode footage about Emacs and then
> live-emacs ( https://github.com/overtone/emacs-live )
>
> On my shameful github account I have a little watered down game life with a
> little visual layer made with Quilt. So you can see your bot filling square
> tiles according to your "strategy".
>
> It was an exercise from the lambda-next clojure training event. I´m not sure
> about its license but I don´t think the guys are gonna object ;-)
>
> It uses refs and can be a good first step in learning. The multithreading
> stuff is specific to Clojure on the Jvm, I think. It has no readme file but
> I could give you a couple of directions in order to have it up and running.
>
> That´s all comes to m mind at the moment ;-)
>
> Bye
> Catonano
>
> --
> --
> You received this message because you are subscribed to the Google
> Groups "Clojure" group.
> To post to this group, send email to clojure@googlegroups.com
> Note that posts from new members are moderated - please be patient with your
> first post.
> To unsubscribe from this group, send email to
> clojure+unsubscr...@googlegroups.com
> For more options, visit this group at
> http://groups.google.com/group/clojure?hl=en
> ---
> You received this message because you are subscribed to the Google Groups
> "Clojure" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to clojure+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/groups/opt_out.
>
>

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.




Re: link for clojure programs

2013-05-06 Thread Catonano
2013/5/4 nrel...@yahoo.com 

> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE?
> thanks a lot...
>

There are tons of resources on line.

But in my experience, the famous MIT course  with Abelsson and Sussman is a
must. It´s about Scheme, not Clojure, but it´s important anyway.

There is also a course on youtube on Scheme by another professor, from
Stanford. That can be important too.

Then, you have to set up an enviroinment. That´s not a subtlety, it´s a
main concern.

As for that, I strongly suggest the Peepcode footage about Emacs and then
live-emacs ( https://github.com/overtone/emacs-live )

On my shameful github account I have a little watered down game life with a
little visual layer made with Quilt. So you can see your bot filling square
tiles according to your "strategy".

It was an exercise from the lambda-next clojure training event. I´m not
sure about its license but I don´t think the guys are gonna object ;-)

It uses refs and can be a good first step in learning. The multithreading
stuff is specific to Clojure on the Jvm, I think. It has no readme file but
I could give you a couple of directions in order to have it up and running.

That´s all comes to m mind at the moment ;-)

Bye
Catonano

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.




Re: link for clojure programs

2013-05-05 Thread Jiaqi Liu
, this book is very easy for beginners to study  ,
also have plenty source codes



2013/5/4 nrel...@yahoo.com 

>
>
> On Saturday, May 4, 2013 2:01:48 PM UTC+8, nre...@yahoo.com wrote:
>>
>> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE?
>>
>
> Thanks
>
> --
> --
> You received this message because you are subscribed to the Google
> Groups "Clojure" group.
> To post to this group, send email to clojure@googlegroups.com
> Note that posts from new members are moderated - please be patient with
> your first post.
> To unsubscribe from this group, send email to
> clojure+unsubscr...@googlegroups.com
> For more options, visit this group at
> http://groups.google.com/group/clojure?hl=en
> ---
> You received this message because you are subscribed to the Google Groups
> "Clojure" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to clojure+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/groups/opt_out.
>
>
>



-- 



刘家齐 (Jacky Liu)

**

手机:15201091195邮箱:liujiaq...@gmail.com

Skype:jacky_liu_1987   QQ:406229156

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.




Re: link for clojure programs

2013-05-04 Thread nrel...@yahoo.com


On Saturday, May 4, 2013 2:01:48 PM UTC+8, nre...@yahoo.com wrote:
>
> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE?
>

Thanks 

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.




Re: link for clojure programs

2013-05-03 Thread Michael Klishin
2013/5/4 nrel...@yahoo.com 

> Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE?


http://clojure-doc.org. If you are looking for projects,
clojure-doc.orghas a library directory
and you can search GitHub for Clojure projects.
-- 
MK

http://github.com/michaelklishin
http://twitter.com/michaelklishin

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.




link for clojure programs

2013-05-03 Thread nrel...@yahoo.com
Can anybody give me a link/websites of codes for BEGINNERS FOR CLOJURE? 
thanks a lot...

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.