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The Big Programming Thread - Page 5

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Thread Rules
1. This is not a "do my homework for me" thread. If you have specific questions, ask, but don't post an assignment or homework problem and expect an exact solution.
2. No recruiting for your cockamamie projects (you won't replace facebook with 3 dudes you found on the internet and $20)
3. If you can't articulate why a language is bad, don't start slinging shit about it. Just remember that nothing is worse than making CSS IE6 compatible.
4. Use [code] tags to format code blocks.
Epsilon8
Profile Joined May 2010
Canada0 Posts
July 09 2010 19:40 GMT
#81
Sorry, but I'm a little confused. I've been programming for a bit and was wondering what is the difference between functional programming and 'regular programming'?
If you wish to travel far and fast, travel light. Take off all your envies, jealousies, unforgiveness, selfishness, and fears.
Sunhay
Profile Joined February 2009
Canada0 Posts
July 09 2010 19:55 GMT
#82
On July 10 2010 03:40 Adeny wrote:
I'm having a bit of trouble finding collections of tasks/challenges, like projecteuler, but maybe not as difficult? I've only done about 25 of the PE tasks, and so far they have been pretty challenging.


Try doing Top Coder problems. If they are too hard, just do the higher level high school questions. Also, DWITE might provide some challenging questions.
www.sunhay.net
spinesheath
Profile Joined June 2009
Germany0 Posts
Last Edited: 2010-07-09 20:01:40
July 09 2010 20:00 GMT
#83
On July 10 2010 04:40 Epsilon8 wrote:
Sorry, but I'm a little confused. I've been programming for a bit and was wondering what is the difference between functional programming and 'regular programming'?

Functional Programming is mostly about recursion (calling a function from within itself) and passing functions as arguments (maybe someone with better knowledge of those can be more precise).
Imperative Programming uses loops instead of recursion.
Object Oriented Programming is usually imperative as far as I know. OOP focuses on Objects and the functions that are related to that object, while imperative non-OOP focuses more on the functions.
I think there also is Logic Programming (never used that at all). Maybe there are some more types that I haven't heard about.
If you have a good reason to disagree with the above, please tell me. Thank you.
Epsilon8
Profile Joined May 2010
Canada0 Posts
July 09 2010 20:12 GMT
#84
On July 10 2010 05:00 spinesheath wrote:
Show nested quote +
On July 10 2010 04:40 Epsilon8 wrote:
Sorry, but I'm a little confused. I've been programming for a bit and was wondering what is the difference between functional programming and 'regular programming'?

Functional Programming is mostly about recursion (calling a function from within itself) and passing functions as arguments (maybe someone with better knowledge of those can be more precise).
Imperative Programming uses loops instead of recursion.
Object Oriented Programming is usually imperative as far as I know. OOP focuses on Objects and the functions that are related to that object, while imperative non-OOP focuses more on the functions.
I think there also is Logic Programming (never used that at all). Maybe there are some more types that I haven't heard about.


Oh alright. I know what that is/have done it. Just didn't know that it was called that. I'm in my second year at college so I would rate myself intermediate/advanced(in some areas) - although I have a lot to learn.

A site thats good to check out is : http://www.thinkgeek.com/tshirts-apparel/unisex/itdepartment/
Lots of funny programming related t-shirts and clothes.
If you wish to travel far and fast, travel light. Take off all your envies, jealousies, unforgiveness, selfishness, and fears.
ChoboCop
Profile Joined July 2004
United States0 Posts
July 09 2010 20:54 GMT
#85
I'm a .Net C# dev. I really appreciate tools like generics, linq, and the entity framework.
Critical thinking is the intellectually disciplined process of actively and skillfully conceptualizing, applying, analyzing, synthesizing, and/or evaluating information gathered.
UdderChaos
Profile Joined February 2010
United Kingdom0 Posts
Last Edited: 2010-07-11 11:16:28
July 09 2010 21:02 GMT
#86
http://www.javabeginner.com/Java-keywords.doc is quite useful if your starting out, not just for Java but also can be useful in other languages as it covers the basic keywords like private public ect. and also java specific ones ofc.
Nunquam iens addo vos sursum
shmay
Profile Joined July 2004
United States0 Posts
July 09 2010 21:04 GMT
#87
On July 10 2010 04:40 Epsilon8 wrote:
Sorry, but I'm a little confused. I've been programming for a bit and was wondering what is the difference between functional programming and 'regular programming'?


functional only uses functions, not any pre-defined special languages constructs (if, else, +, -), except those to define functions

C: 1 + 1

Lisp: (+ 1 1)

In lisp you are calling a function called '+' and sending it two variables ( 1 and 1). C and its family (practically all languages) are called imperative programming, because you are sorta giving the computer a command ("add one to one")

in an OO language, like ruby, you can chain two methods and do something like

"blah".split.count

in lisp, you could do that purely functionally:
(count (split "blah"))
spinesheath
Profile Joined June 2009
Germany0 Posts
Last Edited: 2010-07-09 21:11:28
July 09 2010 21:09 GMT
#88
On July 10 2010 06:04 shmay wrote:
in an OO language, like ruby, you can chain two methods and do something like

"blah".split.count

I would rather say, functions can return objects (or usually references/pointers to objects), on which you can call another member function.

So ("blah".split) is actually an object that has a function count.
If you have a good reason to disagree with the above, please tell me. Thank you.
fanta[Rn]
Profile Joined October 2004
Japan0 Posts
July 09 2010 21:34 GMT
#89
NeHe stuff is fairly outdated by now, I'd try looking for some 3.X content instead.
Manipulate your own matrices, work with shaders, forget about deprecated fixed function completly. Most glX commands are fixed function, especially when they handle matrices, effects, light, etc.

Here's a good OpenGL site, although it uses fixed function for drawing:
http://www.songho.ca/opengl/index.html

For shaders, I thought this one is very good:
http://www.lighthouse3d.com/opengl/glsl/


NeHe I'd only use to get ideas of what is needed in your application.
darmousseh
Profile Joined May 2010
United States1 Post
July 09 2010 21:39 GMT
#90
Oh man, where is the love for ruby? Truly missing out on a great programming language.
Developer for http://mtgfiddle.com
kar1181
Profile Joined May 2010
United Kingdom0 Posts
July 09 2010 22:04 GMT
#91
I think too many people got sucked into writing rails webapps, only to find out it scaled about as well as a 20 tonne dumptruck.

And took it out on the language itself.

Personally I quite like Groovy
Qzy
Profile Joined July 2010
Denmark0 Posts
July 09 2010 22:33 GMT
#92
On July 09 2010 23:05 sluggaslamoo wrote:
Show nested quote +
On July 09 2010 19:09 Qzy wrote:
On July 09 2010 17:36 sluggaslamoo wrote:
What level have you got up to?

http://projecteuler.net/


I'm at level 2 (solved 60) started a few months ago.. you?

I can recommend project euler for EVERYONE who loves programming and math.


Actually I kinda did it so it would force me to get better at algorithmic problem solving, I think I got to 30 before I decided I couldn't take it anymore (long time ago tho) I'm really into programming theory, but not the kind that involves hardcore algorithms. I might try it again some time.



I guess it comes with my study of AI. It's really fun to solve the problems, imo.
TG Sambo... Intel classic! Life of lively to live to life of full life thx to shield battery
AcrossFiveJulys
Profile Joined September 2005
United States0 Posts
July 09 2010 22:39 GMT
#93
If anyone has questions about AI, or even better, machine learning, I'd be happy to answer. I'm a grad student studying machine learning at UM.


Btw I just fixed like the 20th (and HOPEFULLFUCKINGLY the last) bug in my algorithm and I jizzed in my pants
catamorphist
Profile Joined May 2010
United States0 Posts
Last Edited: 2010-07-09 22:48:45
July 09 2010 22:46 GMT
#94
EDIT: Sorry, double-posted somehow.
http://us.battle.net/sc2/en/profile/281144/1/catamorphist/
catamorphist
Profile Joined May 2010
United States0 Posts
Last Edited: 2010-07-09 22:49:31
July 09 2010 22:48 GMT
#95
On July 10 2010 06:04 shmay wrote:
Show nested quote +
On July 10 2010 04:40 Epsilon8 wrote:
Sorry, but I'm a little confused. I've been programming for a bit and was wondering what is the difference between functional programming and 'regular programming'?


functional only uses functions, not any pre-defined special languages constructs (if, else, +, -), except those to define functions

C: 1 + 1

Lisp: (+ 1 1)

In lisp you are calling a function called '+' and sending it two variables ( 1 and 1). C and its family (practically all languages) are called imperative programming, because you are sorta giving the computer a command ("add one to one")

in an OO language, like ruby, you can chain two methods and do something like

"blah".split.count

in lisp, you could do that purely functionally:
(count (split "blah"))


In the interest of combatting disinformation, I feel compelled to point out that this is absolutely, 100% false and bears no relationship to reality. When people talk about "functional programming" they are implying two things:

1a) Being able to pass functions to higher-order functions.
1b) Being able to define anonymous functions concisely (otherwise 1a is very awkward.)

2) Writing in a style as to isolate functions that have observable side effects from non-side-effecting functions, so that you can reason about code more easily.
http://us.battle.net/sc2/en/profile/281144/1/catamorphist/
eaT_Mi_Lquid
Profile Joined March 2010
Germany0 Posts
Last Edited: 2010-07-09 23:54:04
July 09 2010 23:49 GMT
#96
On July 10 2010 07:48 catamorphist wrote:
Show nested quote +
On July 10 2010 06:04 shmay wrote:
On July 10 2010 04:40 Epsilon8 wrote:
Sorry, but I'm a little confused. I've been programming for a bit and was wondering what is the difference between functional programming and 'regular programming'?


functional only uses functions, not any pre-defined special languages constructs (if, else, +, -), except those to define functions

C: 1 + 1

Lisp: (+ 1 1)

In lisp you are calling a function called '+' and sending it two variables ( 1 and 1). C and its family (practically all languages) are called imperative programming, because you are sorta giving the computer a command ("add one to one")

in an OO language, like ruby, you can chain two methods and do something like

"blah".split.count

in lisp, you could do that purely functionally:
(count (split "blah"))


In the interest of combatting disinformation, I feel compelled to point out that this is absolutely, 100% false and bears no relationship to reality. When people talk about "functional programming" they are implying two things:

1a) Being able to pass functions to higher-order functions.
1b) Being able to define anonymous functions concisely (otherwise 1a is very awkward.)

2) Writing in a style as to isolate functions that have observable side effects from non-side-effecting functions, so that you can reason about code more easily.



OK, some people seem to be confused/ do not exactly understand the differences between these different programming paradigm.

As for "Imperative Programming (C, C++, Java, .Net, JavaScript etc.):

It is the most common programming paradigm, and most of the software are written in imperative programming style. In imperative programming, you assign information/values to variables. In the beginning of computing it means that you will assign some value to a memory address, in modern programming you assign values to variables. Because you assign something and instruct the function/program to do something with it actively it is called "Imperative programming". an example for imperative programming in pseudo code is

int a = 1;
int b = 10;

while(a < b){
a = a + 1;
if(a == b/2)
//do something
}


As you can see you instruct the program to do something, therefore it's called imperative proramming.

Object Oriented Programming:

OOP, is a programming paradigm that is used in imperative programming a lot. It mainly results from structured programming (i did not check this), and it differs from OOP mainly in this regard:

Instances. Whereas in structured programming you program by assigning simple values or complex value types (combining a set of value types into one structure), you will define those structures and create instances of those structures in OOP. Meaning that you work with instances (objects) instead of data structures which are statically allocated in the memory. If you want it, you can call classes that are defined in any modern OOP language structures, whenever they are declared as "static". In summary, OOP is about working with instances of defined data structures and procedures. OOP has proven itself to be viable to write complex software, and was developed from structured programming solely for this purpose, to cope with increasing complexity of programs.

Functional Programming:

Functional programming is something complely different from imperative programming. In functional programming, you don't care about assigning values to variables, in the meaning of allocating memory etc. It is a mathematical way to program things. It is based solely on functions, whereas in imperative programming you have assignments and conditional constructs etc. and you use it in a imperative way by calling them sequentially. I don't know too much about functional programming, but this is the main difference between them. Functional programming is not suited for common software, it is more suited for implementing algorithms and calculus etc.

BTW: This topic is too broad, but if anyone want to discuss Systems Engineering/Design stuff I'm in, such like SOA, Web development etc.
League of Legends: Puffelipuff
Freezard
Profile Joined April 2007
Sweden327 Posts
July 09 2010 23:58 GMT
#97
On July 10 2010 05:54 ChoboCop wrote:
I'm a .Net C# dev. I really appreciate tools like generics, linq, and the entity framework.


LINQ is probably the main reason why I got to like C# so much, it's fucking brilliant.
haxorz
Profile Joined June 2009
United States0 Posts
July 10 2010 00:00 GMT
#98
On July 10 2010 08:49 eaT_Mi_Lquid wrote:
+ Show Spoiler +

On July 10 2010 07:48 catamorphist wrote:
Show nested quote +
On July 10 2010 06:04 shmay wrote:
On July 10 2010 04:40 Epsilon8 wrote:
Sorry, but I'm a little confused. I've been programming for a bit and was wondering what is the difference between functional programming and 'regular programming'?


functional only uses functions, not any pre-defined special languages constructs (if, else, +, -), except those to define functions

C: 1 + 1

Lisp: (+ 1 1)

In lisp you are calling a function called '+' and sending it two variables ( 1 and 1). C and its family (practically all languages) are called imperative programming, because you are sorta giving the computer a command ("add one to one")

in an OO language, like ruby, you can chain two methods and do something like

"blah".split.count

in lisp, you could do that purely functionally:
(count (split "blah"))


In the interest of combatting disinformation, I feel compelled to point out that this is absolutely, 100% false and bears no relationship to reality. When people talk about "functional programming" they are implying two things:

1a) Being able to pass functions to higher-order functions.
1b) Being able to define anonymous functions concisely (otherwise 1a is very awkward.)

2) Writing in a style as to isolate functions that have observable side effects from non-side-effecting functions, so that you can reason about code more easily.



OK, some people seem to be confused/ do not exactly understand the differences between these different programming paradigm.

As for "Imperative Programming (C, C++, Java, .Net, JavaScript etc.):

It is the most common programming paradigm, and most of the software are written in imperative programming style. In imperative programming, you assign information/values to variables. In the beginning of computing it means that you will assign some value to a memory address, in modern programming you assign values to variables. Because you assign something and instruct the function/program to do something with it actively it is called "Imperative programming". an example for imperative programming in pseudo code is

int a = 1;
int b = 10;

while(a < b){
a = a + 1;
if(a == b/2)
//do something
}


As you can see you instruct the program to do something, therefore it's called imperative proramming.

Object Oriented Programming:

OOP, is a programming paradigm that is used in imperative programming a lot. It mainly results from structured programming (i did not check this), and it differs from OOP mainly in this regard:

Instances. Whereas in structured programming you program by assigning simple values or complex value types (combining a set of value types into one structure), you will define those structures and create instances of those structures in OOP. Meaning that you work with instances (objects) instead of data structures which are statically allocated in the memory. If you want it, you can call classes that are defined in any modern OOP language structures, whenever they are declared as "static". In summary, OOP is about working with instances of defined data structures and procedures. OOP has proven itself to be viable to write complex software, and was developed from structured programming solely for this purpose, to cope with increasing complexity of programs.

Functional Programming:

Functional programming is something complely different from imperative programming. In functional programming, you don't care about assigning values to variables, in the meaning of allocating memory etc. It is a mathematical way to program things. It is based solely on functions, whereas in imperative programming you have assignments and conditional constructs etc. and you use it in a imperative way by calling them sequentially. I don't know too much about functional programming, but this is the main difference between them. Functional programming is not suited for common software, it is more suited for implementing algorithms and calculus etc.



I was going to write up a long response as well, so I'll be concise (and a bit imprecise).

Functional programming models computation as the evaluation of mathematical functions. The "unit" of computation is the function.

Imperative programming models computation as the execution of commands and the mutation of state. The "unit" of computation is the command.

Object-Oriented programming models computation as the interaction between objects. The "unit" of computation is the object.


As there seems to be a misconception about functional programming (with regards to purpose, usefulness, etc), I'd be happy to answer anyone's questions.
And theres the GG.
jgad
Profile Joined March 2008
Canada0 Posts
July 10 2010 00:16 GMT
#99
All these fancy, trendy languages....

I code in Delphi. And ladder logic. 0_o
콩까지마
eaT_Mi_Lquid
Profile Joined March 2010
Germany0 Posts
July 10 2010 00:20 GMT
#100
On July 10 2010 09:16 jgad wrote:
All these fancy, trendy languages....

I code in Delphi. And ladder logic. 0_o



Hehe , actually, real software devs don't care about certain prog. languages anymore. If there's a need to implement something in a certain language they just do it. Familiarity with a certain language is not that important, as good programmers can get a grasp from a given programming language really fast.
League of Legends: Puffelipuff
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