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Alan Balkany3-Feb-14 5:17

Alan Balkany

3-Feb-14 5:17

Haven't used it since my Artificial Intelligence term project in grad school. It was a frame-based system for playing chess endgames. The ability to treat LISP code as objects was convenient for this application. Haven't had the opportunity or inclination to use it since then.

JimmyRopes3-Feb-14 8:22

3-Feb-14 8:22

Thanks for the information.

The report of my death was an exaggeration - Mark Twain

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bwallan3-Feb-14 8:25

bwallan

3-Feb-14 8:25

Lost In Stupid Parentheses (LISP)... Yes, I did use LISP about 20+ years ago. Didn't know it was still used or even known!?

JimmyRopes3-Feb-14 20:38

3-Feb-14 20:38

bwallan wrote:
Didn't know it was still used or even known!?

I was reading something written by Alan Kay[^] and he mentioned LISP as being the best computer language. It was probably written many years ago. It got my curiosity up about if it was still used and if it was worth learning.

The report of my death was an exaggeration - Mark Twain

Simply Elegant Designs JimmyRopes Designs
Think inside the box! ProActive Secure Systems

I'm on-line therefore I am.
JimmyRopes

bwallan4-Feb-14 7:22

bwallan

4-Feb-14 7:22

Since Alan K. was playing around with LISP in the late 1960's, I would assume the quote came from around then. LISP appears to be one of most enduring languages (along with Fortran), originating in 1958.

Reading the Wikipedia article on LISP it would look like it has had a resurgence in recent years. I might dig up my old LISP code and see if it is still viable... Smile | :)

bwa

JimmyRopes5-Feb-14 1:23

5-Feb-14 1:23

bwallan wrote:
Since Alan K. was playing around with LISP in the late 1960's, I would assume the quote came from around then.

Quite likely.

The report of my death was an exaggeration - Mark Twain

Simply Elegant Designs JimmyRopes Designs
Think inside the box! ProActive Secure Systems

I'm on-line therefore I am.
JimmyRopes

Member 81978313-Feb-14 8:56

Member 8197831

3-Feb-14 8:56

After reading through some of the other comments, these things come to mind:
1. I agree, after learning Common Lisp for a few days, I was like "What on earth will I ever use this for?"
2. After spending a couple of days with Clojure, I was like, "Oh man, I wish I could use this to write ALL of my code!"

So if you're going to look into it, I can personally recommend Clojure for the following reasons:
1. It's fun (at least in my opinion)
2. It will absolutely change the way you think about programming (even in OO contexts)
3. It's a JVM language, so you can use it along with Java code (or Scala, or Groovy, or ...)
4. You have the functional paradigm (it's a LISP dialect) but you can also do object-oriented things (it runs on the JVM) if that makes sense for the situation.
5. It IS in active use in a number of projects today (though I can't remember them off the top of my head; that's fine, go ahead and call me out for that; or better yet, just google it)
6. It has an active user community. I've always found answers to my questions on Stack Overflow.

As for why to learn functional programming in general, I agree with one of the posters who said that it increases his productivity. In my experience, functional programs are easier to reason about. If you can break your entire program down into a set of small functions, you can test each of the functions individually. (If you put in the same arguments you should always get the same result.) If you can determine that each of your smaller functions is logically correct, then it becomes easier to reason that your full program is logically correct. And if your program has fewer bugs, you won't spend as much time debugging.

Thinking functionally requires me to think more about what I want to DO, and much less about HOW I want to do it. (I know everyone says that about functional languages, but it is true in my experience!)

I have also found that my programs in Clojure are more concise than what I write in other languages. This is partially due to the syntax (come on, guys, the parentheses really aren't that bad; Emacs formats it REALLY nicely) but it is also due to the functional paradigm---it just forces you to think straight to the point of what you're trying to do.

Having a REPL (Read-Eval-Print Loop) is EXTREMELY helpful in learning a new language. Try stuff out in real time in the interpreter (just like with Python, etc.) Decreases the amount of time to master a given concept, in my opinion. Because of this, it's also awesome as a prototyping language. I sometimes use Clojure to make a prototype before coding it up in the language that we'll use for production.

The things I've learned from Clojure have changed the way that I do things in R, C#, Java, and Python (the languages I use more frequently at work.)

So, in conclusion, I'd highly recommend that you learn a functional programming language, and I personally recommend Clojure as a viable way to do that. (I haven't used Scala, etc., so I can't speak to their merits.)

Some Clojure resources:
* Mark Volkmann's Clojure Page[^]: A lengthy tutorial on Clojure broken up by topics. REALLY good resource
* Leiningen[^]: a build automation tool that makes library dependencies REALLY easy. Go check this out for sure.
* Clojars[^]: a repository of third-party clojure JAR libraries that is checked automatically by Leiningen
* The Clojure Toolbox[^]: A list of clojure libraries broken up by purpose. (Need an HTML parser? How about clj-tagsoup?)

Hopefully that's enough to get you going if you decide that it has piqued your interest. Good luck!

JimmyRopes3-Feb-14 20:40

3-Feb-14 20:40

Thanks for the information and links. I will have to look into Clojure.

The report of my death was an exaggeration - Mark Twain

Simply Elegant Designs JimmyRopes Designs
Think inside the box! ProActive Secure Systems

I'm on-line therefore I am.
JimmyRopes

mattyltaylor3-Feb-14 12:43

mattyltaylor

3-Feb-14 12:43

Hi,
I've used AutoCAD for 20+ years. For almost all of those I've used AutoLISP to get AutoCAD to do what I want it to. It's obviously not Common Lisp, but I've found it to be extremely useful when trying to automate tasks. In AutoCAD you can almost use it as a scripting language - it's easy to make changes on the fly (no code compilation required).
I've never touched Common Lisp though!

Cheers.

JimmyRopes3-Feb-14 20:41

3-Feb-14 20:41

Thanks for the information

The report of my death was an exaggeration - Mark Twain

Simply Elegant Designs JimmyRopes Designs
Think inside the box! ProActive Secure Systems

I'm on-line therefore I am.
JimmyRopes

Member 46088983-Feb-14 19:20

Member 4608898

3-Feb-14 19:20

Anyone who use emacs or works with HLA (a lot of the defence simulation industry) or one of the SAFs (modsaf, onesaf etc) will use lisp as the configuration language. They won't call it lisp: they will give it some configuration language name but it is still lisp in syntax.

Do you use lambda functions? They started in lisp.

JimmyRopes3-Feb-14 20:42

3-Feb-14 20:42

Member 4608898 wrote:
Do you use lambda functions? They started in lisp.

Yes I do and didn't know the originated in LISP.

The report of my death was an exaggeration - Mark Twain

Simply Elegant Designs JimmyRopes Designs
Think inside the box! ProActive Secure Systems

I'm on-line therefore I am.
JimmyRopes

Choosing a development environment

irneb3-Feb-14 22:23

irneb

3-Feb-14 22:23

JimmyRopes wrote:
Yes I do and didn't know the originated in LISP.

You'd be surprised just how many things originated from lisp. Even the ubiquitous if-then-else wasn't in Fortran before it was taken from Lisp, it only became ubiquitous in other languages when it was shown to be so much easier to use than conditional goto-statements. Map functions (i.e. the functional method of iterating over a list/array and modifying each item to produce a list of results) was originally in the oldest of Lisps - generally known as the mapcar function.

Chances are that whatever language you're using, about half of it stemmed from Lisp originally. Lisp was the first language to actually have all of the now "new" concepts incorporated in one package: iterative, imperative, functional, recursive, object oriented, meta (macros), etc. It allows you to mix-n-match any of these interchangeably so you can choose which works the best for the scenario at hand. That is probably why it makes you able to program in other languages a lot better after you've done some Lisp.

Note though, Lisp comes in 3 major dialects: Common, Scheme & "Other". Clojure and NewLisp can be seen as examples of the "Other" type, while they are still Lisps, they don't conform to the strict specifications of Common / Scheme - it would be like a new type of C where it's not conforming to the general principles of C (you could see it like the difference between Java and C#, both look reasonably the same and do the same things, but in slightly different detail).

Scheme is generally used in universities since it's a minimalist language, i.e. only the basics are incorporated into its spec. You're supposed to generate your own libraries or use others' libraries - these are usually not included into the language. Common Lisp is at the other end of the spectrum, it's specification tries to encompass all generally needed libraries and functionality. The Others tend to be a mix or they're built on top of existing libraries.

Here's one thing which opened my eyes quite wide: The creator of IronScheme first started to make an IronLisp (intended to be a Common Lisp on the DotNet VM). He gave up on this because it was too difficult. One aspect (of many) which is very dificult to near impossible to implement in the CLR is Common Lisp's object orientation (known as CLOS - Common Lisp Object System) and especially the MOP (meta object protocol). It simply doesn't translate into something which the CLR can do. Scheme was then chosen, since it doesn't specify an object oriented system, thus the built-in DotNet system can be used.

stp661-Feb-14 2:27

stp66

1-Feb-14 2:27

I sometimes develop some small applications, data-centric, using VBA and MSAccess.. Say, software for a swimming club (members, competitions, records,....), ... about 10 tables plus the lookup table, multilange, data oriented, almonst no graphics (pictures of people, maps for locating the clubs for next competitions, tables of results,... ). Modest volumes, clubs with 1000 members as a maximum

Now it is time to turn to a moden environment: I think VBA is stuck in the same flavour as 15 years ago, so .NET should be the target

Database_ SQL-Server Express or MySQl
Problem comes with language: C# o VB? I prefer VB because I am more familiar, and (at least some years ago), there were only 15% performance increase in favour of C#, which was absolutely irrelevant for me. No idea of what is the point today. Both languages are just instruments to manage the underlying .NET framework

Visual Studio Express (Windows 8.1) comes in 5 formats: Web, Windows, Windows Desktop, Team Foundation and Windows Phone

No idea what to get: my software will be used by few people (from 1 to 10 as a maximum), in the premises of the swimming club (so, no web....),.... but,.... everyone things today in checking things from a web browser (last results of a given swimmer, payment status of a given member, dates for next competitions,...), ... or even from an Android....

I remember Windows Forms allowed more "complex" forms (in terms of data interation), some years ago...

Additionally, if I develop the sw in 3-tier, theoretically changing the display tier would allow to move to another platform, which forces me to use Web Services or another current technology to communication between tiers.... so, more complexity for a simple, basic application...

Any hints on that please? I would like a rapid development, but I wouldn't like hearing potential clubs saying this is an "old" application because it is not web-based...

thanks

DaveAuld1-Feb-14 2:57

DaveAuld

1-Feb-14 2:57

C#, Asp.net MVC with SQLExpress backend will serve you well. There is also good video tutorials on the Asp.net website.http://www.asp.net/mvc[^] (I used them a lot when first started using this stack).

Alternatively you could go down the Javascript route, using Node.js+Express+MongoDB but probably more of a steeper learning curve.

I would go with #1 to start with.

Dave
Find Me On: Web|Facebook|Twitter|LinkedIn|GitHub

Folding Stats: Team CodeProject

Sampath Lokuge1-Feb-14 3:17

Sampath Lokuge

1-Feb-14 3:17

I would like to recommend to learn SPA (Single Page Application) with AngularJS.SPA is the latest trend in dev world these days.Good Luck ! Smile | :)

Some useful links for you.

angularjs

johnpapa

My Tech Blog : Sampath Lokuge Tech Blog

Nothing is Impossible for Willing Heart.

PIEBALDconsult1-Feb-14 5:25

PIEBALDconsult

1-Feb-14 5:25

SQL Server Express or SQL Server CE.
VB.net is OK if you do it right, otherwise C#.
Visual Studio Express has served me well.

Or, if you take a class in C#, look into DreamSpark to get Visual Studio Professional.

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S Houghtelin1-Feb-14 6:58

S Houghtelin

1-Feb-14 6:58

C# isn't too hard to get used to if you have any familiarity with VB.NET. I am a long time VB6 VBA C/C++ programmer and I found I prefer C# these days for applications. It requires a little more discipline than VB but that actually results in more robust software.

It was broke, so I fixed it.

Eddy Vluggen1-Feb-14 7:17

Eddy Vluggen

1-Feb-14 7:17

stp66 wrote:
I wouldn't like hearing potential clubs saying this is an "old" application because it is not web-based...

Simples; don't go to that club.

Anyone posting those statements should not be taken seriously. That's regardless of position Smile | :)

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

PIEBALDconsult1-Feb-14 7:29

PIEBALDconsult

1-Feb-14 7:29

I And don't join clubs that would have you as a member.

Edit: Shoot, I didn't mean "I". That changed the whole meaning of the sentence. Sorry.

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modified 1-Feb-14 14:37pm.

Eddy Vluggen1-Feb-14 8:26

Eddy Vluggen

1-Feb-14 8:26

PIEBALDconsult wrote:
I don't join clubs that would have you as a member.

I think those clubs might be illegal where you live.

Would you waste time on someone who is shouting he doesn't know what he's doing? Worse, waste time educating someone whose job it is to know the difference?

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

PIEBALDconsult1-Feb-14 8:39

PIEBALDconsult

1-Feb-14 8:39

Eddy Vluggen wrote:
might be illegal where you live

Nah, this is the wild wild west. Even Roger is welcome here.

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GuyThiebaut1-Feb-14 9:12

GuyThiebaut

1-Feb-14 9:12

I came via the VBA route and here is my advice for what it's worth.
Start with VB - give yourself a month of programming with VB just to get a sense of the .NET framework and the IDE.
Then dive into C#, learning C# will make it easier to drop any bad programming habits you gained through programming in VBA(...and I had loads of them).

C# has an elegance to it that makes programming a delight Smile | :)

(in my work I program with both VB and C#)

Here's a nice easy intro to VB clickety[^] - it covers the really basic .NET stuff and may be overly simple but it's what kick-started my .NET career.

“That which can be asserted without evidence, can be dismissed without evidence.”

― Christopher Hitchens

modified 1-Feb-14 15:37pm.

Mycroft Holmes1-Feb-14 20:42

Mycroft Holmes

1-Feb-14 20:42

Another point for the c# route is that the majority of learning resources are in c#.

I would look at the asp mvc path, I travelled the Silverlight route and it is now dead so be aware the latest trend may be short lived.

Never underestimate the power of human stupidity
RAH