NHacker Next
  • new
  • past
  • show
  • ask
  • show
  • jobs
  • submit
Logo Programming Language (el.media.mit.edu)
spdustin 3 minutes ago [-]
I have fond memories learning about Logo from Mr. Wizard!
yogsototh 8 hours ago [-]
I myself learned programming with logo, at my school when I was 8 or 10. And it was a delight, I am so grateful it existed.

But quite surprisingly, when later during my Ph.D. part of my time was dedicated to give exercises to students. And we used logo instead of the more usual programming languages. And I think it really helped them to really internalise programming a lot better. Typically, the latest exercices introduced recursion which is immediately visible as fractals.

    HIDETURTLE
    
    PENUP
    SETXY -200 0
    RIGHT 90
    PENDOWN
    
    to dragon :degree :size
        setpensize 1
        if :size>5  [setpensize 2]
        if :size>10 [setpensize 3]
        if :size>20 [setpensize 4]
        if :size>40 [setpensize 5]
        ifelse :degree=0 [
            fd :size
        ][
            left  45 dragon (:degree-1) (size/4)
            right 90 dragon (:degree-1) (size/2)
            left  90 dragon (:degree-1) (size/4)
            right 45
        ]
    end
    
    dragon 6 3000

if you want to give a try :)
gregsadetsky 5 hours ago [-]
small correction - use `:size` in the three lines near the bottom (rather than `size`)

I tried it on https://www.calormen.com/jslogo/ and saw this small typo

cheers!

p.s. same as you, I was introduced to Logo around the age of 8 and I remember writing programs on paper when I was home, stepping through them line by line... it was inevitable I'd gravitate towards programming, ha :-)

SamBam 4 hours ago [-]
I should have scrolled down to your comment first! I spent 10 minutes debugging.

Nice work GP if that was air-coded, though.

xtracto 7 hours ago [-]
I was also introduced to computer programming using LOGO back in 1989. I remember drawing houses and stick figures in it.

Fast forward around 2010, I gave Agent Based Simulation workshop courses to PhD students using NetLogo , which at the time was very popular in the Social Sciences.

It was very interesting to teach programming to non-tech very intelligent people. Some of them came up with really cool simulation ideas. I loved that part of my career.

imb 4 hours ago [-]
For many years, our students[0] have used Logo as an integral part of their math circle-style[1] classes. When we started Wally Feurzeig, one of the creators of Logo, was instrumental in helping us incorporate ideas from Logo into the kind of non-standard problem solving that we were striving for. Turtle geometry is a particularly helpful "instrument of the mind" for exploring dynamic geometry. Our co-founder, Victor Gutenmacher, wrote an incredible book[2] on "geometry in motion," which gave a completely different perspective on geometry from the one seen in school and which our students could explore with the help of Logo. For many of our students, especially those with math anxiety, Logo was what enabled them to overcome that anxiety and discover the joy of thinking and tinkering. Many programmers today have fond memories of getting into programming via Logo, but I would argue that despite the current blistering pace of progress, it remains one of the best and gentlest introductions to problem solving and computational thinking.

[0] https://www.gentleknowledge.com/

[1] https://en.wikipedia.org/wiki/Math_circle

[2] https://www.amazon.com/dp/0817641610

Bankq 10 hours ago [-]
I'm forever grateful for having the access to Logo programming in early 90s, as a kid from a 3rd world country, for how it leads to where I am today.

My first ever english word that I can spell out is REPEAT.

mauvehaus 9 hours ago [-]
In the early nineties in elementary school I lived in Belgium, and went to a summer camp where we programmed with Logo in a localized French version.

I had played with Logo on Apple IIe's in the US, and thought it made sense that in a French-speaking region[0] they'd have a French version. I relearned what little I already knew, but regrettably, this did not help greatly with my French skills.

All I remember from this is that `hazard' was the random built-in. Dunno why that's stuck, but there's probably some more important bit of information that should be in my brain if that weren't.

[0] Yeah, yeah, I know French, Flemish, and German are the official languages. I was in a French-speaking part.

yurimalheiros 9 hours ago [-]
Me too. It was one of my first experiences with programming languages back in elementary school in Brazil.
ihumanable 11 hours ago [-]
I still remember when we learned logo in elementary school. I had to get my mom to go out and buy a 3.5" disk so I could save my programs.

When I realized that all of logo was actually saved on that disk and I could continue playing with the turtle at home, I was amazed.

Drawing little things, realizing that I was repeating stuff and breaking it into little functions so I could draw them again more easily. I was learning the essentials of programming and didn't even realize it.

astrobe_ 9 hours ago [-]
Also as a child, I was amazed by the associative tables it offered; I thought "I can make intelligent programs". I think I was thinking AI but I won't trust my memory on this. But I played a lot more with the turtle.
Xirdus 10 hours ago [-]
We had it (or one of the clones) in middle school, but it was a demo version that had saving disabled. Half of each class was messing with the turtle. The other half was writing down the code with pen and paper so that we can have it graded.
reaperducer 10 hours ago [-]
I remember learning LOGO in school. There was a single 4K computer for the entire school, so we learned how to program by calling out turtle commands to the teacher who would draw the results with a marker on a sheet of plastic on an overhead projector.

At the end of that exercise, the accumulated commands would be taken to the computer (in another part of the school) and entered into the computer, and eventually we'd get a plotter printout showing the results.

Those early days of computing feel like we were like being on another planet.

lackoftactics 12 hours ago [-]
I didn't win logo programming competition in polish equivalent of 7th grade and I am still salty about it
Tade0 11 hours ago [-]
I learned the Language through examples because the version provided by the school didn't have documentation and in 00s Poland internet was still relatively rare.

I... participed in the competition, but that's all.

lackoftactics 11 hours ago [-]
same problem, it wasn't exaclty the best experience with first programming language
knome 10 hours ago [-]
ha. 4th grade for me, though I'm more amused than salty about the affair. who's ever heard of 'recursion'? honestly.
lackoftactics 10 hours ago [-]
tbh, sounds like a made-up term coined by someone who could go on and on
turtlegeometry 9 hours ago [-]
This is on top of HN right now, and there is still nobody who has mentioned the fact that the tier-1 book Turtle Geometry <https://direct.mit.edu/books/oa-monograph/4663/Turtle-Geomet...> , is in open access.

Do yourself a favor, and read it today : it is that good. Even though it is quite depressing to see that the revolution in education that the book was predicting in its preface, simply never happened.

madcaptenor 9 hours ago [-]
I was not expecting to see that the book would culminate in a chapter on general relativity!
mcphage 7 hours ago [-]
There was also "Turtles, Termites, and Traffic Jams" which uses a parallelized version of logo to explore ideas about decentralized systems and is really excellent: https://mitpress.mit.edu/9780262680936/turtles-termites-and-...
29 minutes ago [-]
briandw 10 hours ago [-]
Logo was created by by Seymour Papert. I highly recommend his book Mindstorms: https://en.wikipedia.org/wiki/Mindstorms_(book) It was written in 1980 but could have mostly been written today. All the same issues with teachers misunderstandings and fear of math and technology and refusal to change to meet the challenges of the age.
jkestner 4 hours ago [-]
One of my favorite books is Turtles, Termites, and Traffic Jams (https://mitpress.mit.edu/9780262680936/turtles-termites-and-...), basically the thesis of one of his students (and current MIT Media Lab professor) Mitchel Resnick. It's about the educational value of modeling distributed systems with StarLogo.
dofm 8 hours ago [-]
I believe it is legally available as a PDF — as far as I remember via the ACM?

Very important book.

jecel 7 hours ago [-]
The first line of https://en.wikipedia.org/wiki/Logo_(programming_language) is "Logo is an educational programming language, designed in 1967 by Wally Feurzeig, Seymour Papert, and Cynthia Solomon." so you are correct but it is nice to mention his co-inventors. I agree about the book. I had to borrow it from a friend, read it quickly and give it back in 1983 so my memories of it are a bit fuzzy.
zorobo 5 hours ago [-]
My favorite logo on macOS is https://www.alancsmith.co.uk/logo/ First dabbled with logo on my apple ][, attracted by turtle graphics like many others.
kdavis 9 hours ago [-]
Kicked off so many memories...

Early 80's I learned Logo and Basic at a local store that sold Apple computers. It was called "The Logical Choice" and had a classroom tucked away behind a false wall and an English Sheep dog "Sir Isaac Newton" that would hang around the store!

Nice, I just found a story on the store, page 5 of [1].

[1] https://mirrors.apple2.org.za/ftp.apple.asimov.net/documenta...

mschaef 11 hours ago [-]
Back in 1983, my elementary school was a part of a Logo pilot program. We had a lab of Commodore 64's that I had free run of (my mom was a teacher there), and it's why I do what I do all these years later.

What I find interesting it that it's not just programming, specifically. Logo is a highly interactive and dynamic language (a relative of Lisp), and that influenced the way I think about writing code. Seymour Papert did a lot for me, albeit highly indirectly.

https://mschaef.com/c64

r2ob 10 hours ago [-]
Logo was my first contact with computer (pc 386)
corysama 11 hours ago [-]
Logo was my introduction to programming. Working on a 1 MHz Commodore64, my masterpiece was a fireworks show that was animated by the fact that the individual drawing commands were so slow you could watch them play out.

So, draw a curve from the ground to the sky. Draw some explosion shape. Change pen color to the sky color. Draw the curve and the explosion again to erase them. Change pen color and start the next firework.

Hobadee 2 hours ago [-]
I'm not seeing any shout-outs to MSWLogo! I loved being able to create dialog boxes and UIs!

Also, The Great Logo Adventure is a great book for kids learning Logo. It's what I learned with, and it's available as a free PDF now!

consumer451 10 hours ago [-]
Anyone here remember a 1980's Logo-programmable robot that I once used in a TAG program? It had a pen, we would lay it on top of a giant sheet of paper.

It was like a little futuristic tank. I searched for a minute, and I cannot find the exact model. Did I imagine this?

jamessb 10 hours ago [-]
It was probably one of the Turtle robots or a derivative of them: https://en.wikipedia.org/wiki/Turtle_(robot)

One later variant is the Valiant Roamer https://www.computinghistory.org.uk/det/30545/Valiant-Roamer...

dekhn 10 hours ago [-]
Yes, I remember. See anything familiar on https://www.weeklyrobotics.com/articles/2023_01_25_the_histo...
criddell 10 hours ago [-]
Did it look like this:

https://en.wikipedia.org/wiki/Big_Trak

Doesn't have a pen, but maybe it was a modified version of that toy?

consumer451 10 hours ago [-]
YES! This was exactly it. Thank you.

It seems my pen memory came from a different logo-driven bot. In-fact, the Big Trak was not even Logo-driven, but had a similar command system.

I appear to have combined childhood recollections, but that was the shape I was "remembering." No wonder, just look at that thing! lol

msarnoff 7 hours ago [-]
LCSI LogoWriter for 68k Macs[0] was my shit. It was my first[1] introduction to programming in elementary school and I spent hours trying to make games with it. There were 4 turtles and you could treat them like sprites; you give them custom shapes and colours, and there were basic collision detection primitives. You could also check for collisions with the background by querying the colour under a turtle. You could play and record your own sounds... spent so much time with that little round Apple microphone[2] recording goofy sound effects.

[0] https://www.macintoshrepository.org/6717-logo-writer-2-0

[1] technically I had used the Apple II version a couple times first

[2] https://applerescueofdenver.com/products-page/macintosh-to-p...

dofm 8 hours ago [-]
Logo is a real surprise if you revisit it as a grown professional. Remarkably elegant language.
thought_alarm 10 hours ago [-]
This on-line version of Logo is pretty great: https://www.calormen.com/jslogo/
TheSkyHasEyes 10 hours ago [-]
hide turtle

> Don't know how to HIDE

:(

thought_alarm 10 hours ago [-]
Try hideturtle or ht.
kccqzy 8 hours ago [-]
As a child, I really enjoyed Logo. It appeared as a sidebar on a math textbook about angles and line segments. I studied it like I studied everything else in the textbook, but I didn’t immediately realize it was a programming language, a means to control a computer. Fast forward a few years in elementary school, when the teacher actually began to teach Logo with all students in front of a computer, it was such a profound revelation for me.

During the second Logo class, the teacher set up a competition. A prize was to be given to the student who could first plot an equilateral triangle, a square, a regular pentagon, a regular hexagon, etc, up to a regular icosagon. I won the prize because I wrote formulas to make the computer do the angle computation. I was so so proud of myself compared to my classmates who were computing angles with pen and paper. It felt like the first inkling of the power of automation.

Duanemclemore 11 hours ago [-]
When I was seven I wrote my first program. It was in Terrapin Logo and evenly tiled the monitor of my elementary school's Apple IIe with hexagons.

It's been all downhill since.

jasperry 8 hours ago [-]
Very similar to my story. Sometimes I feel sad that I'll never know who was the enlightened administrator in my humble district who somehow got my elementary school an Apple computer lab with Logo in 1983, and that they'll never know what an impact it made on my life.
JSR_FDED 10 hours ago [-]
Turtles all the way down?
vilius 5 hours ago [-]
It’s 1998, I’m 10, it’s a gloomy autumn morning, in Klaipeda (pop. 200k), Lithuania, eastern Europe. I’m at school. Informatics class. Never touched a computer before.

The computer is running windows 95. The teacher starts Logo and I see that turtle in the middle of the screen. She explains how to make it move.

And I start typing my very first code.

It’s lisp based. Took me 28 years to learn that. Now I think I need to finish the job and pock up lisp.

nsoldiac 9 hours ago [-]
They taught us Logo at school in the early 90s in Lima, Peru. I'll never forget the aha moment of going from "forward 10, left 90" to "repeat 360 [forward 1 right 1]" and bam a circle! They had us bring a formatted 5in floppy disk (they were indeed floppy) to our first class; what was this sorcery?
Havoc 8 hours ago [-]
Didn't notice it as a kid but Logo is an absolute masterpiece if you think about raw impact on the IT world.

70 comments here and they're basically all positive about Logo being formative

JosephRedfern 5 hours ago [-]
I had a great teacher in primary school who introduced us to programming with Logo. We ran a variant called MSWLogo - it was my gateway drug, and how I learned what "paisley" was. Good times!
animateus 11 hours ago [-]
Oh my god - Logo, brings back memories of my childhood and my first "microcomputer": ZX Spectrum +. I spent countless hours trying to force the damn turtle to draw shapes I wanted it to. Unbelievable that this language is still alive.
fipar 10 hours ago [-]
Same for me but on the Spectrum's illegitimate South American cousin, the TK-90X :)

The language is still alive but I think Scratch has mostly taken its place.

timbit42 5 hours ago [-]
Well, Scratch essentially is Logo, but with dragging bricks instead of typing.
haunter 10 hours ago [-]
This has to be one of the most widely ported language of them all because there are countless implementations https://en.wikipedia.org/wiki/Logo_(programming_language)#Im...

310 versions!! https://pavel.it.fmi.uni-sofia.bg/logotree/pdf/LogoTree.pdf

IceCreamJonsey 4 hours ago [-]
azhenley 10 hours ago [-]
I’d say Lisp, Logo, and Basic as the top 3.

How come no one makes dialects of PHP?? :)

BalinKing 7 hours ago [-]
timbit42 5 hours ago [-]
The fourth one is probably Forth.
mbork_pl 8 hours ago [-]
Actually, lisp and basic - logo is a dialect of lisp.
stusmall 11 hours ago [-]
Logo started my love of programming. I will always be thankful for it and that little turtle. IIRC there was a limit of 128 stamps in LogoWriter and my sister and I would fight so much about it.
konart 4 hours ago [-]
Good old days in my school in Russia. Logo was the first programming language we've been taught back in the 90s.
mococa 12 hours ago [-]
I learned how to program (& do CAD) with LOGO when I was 8 y'old.
HexDecOctBin 10 hours ago [-]
I learnt that I must be good at computers when in 4th grade, despite never having touched a PC before, I not only managed to ace my Logo class but was asked by my teacher to help out other struggling students (I am just realising that essentially made me a TA in our class). I still remember trying to understand the Pen Up and Pen Down commands from a book with no immediate access to a PC to try them on.
maxrev17 5 hours ago [-]
I used to get in trouble for making it play various noises of increasing hilarity via the inbuilt speaker . Always in bother but learned a lot and lots of fun!
timbert 9 hours ago [-]
I have fond memories of using Logo on my dad's Apple ][ back in the 80's. Glad to see others feel the same!
9 hours ago [-]
Angostura 7 hours ago [-]
There was an excellent fully featured version of Logo for the ZxSpectrum that got me hooked.

Came for the graphics, stayed for the recursion and string handling

wooperville 11 hours ago [-]
The majority of GenX programmers I know learned logo in the 70s and early 80s. Such a great introductory language.
joeypickles 11 hours ago [-]
Yeah, somehow I owe my entire software engineering career to that flower and garden program example. There was something about being able to add new words based on primitives, and new words based on custom words, that captured me for good.
countrymile 9 hours ago [-]
I'm currently writing a history of this. What year in the 70s? I've struggled to find widespread logo use before the end of the 1970s.
timbit42 4 hours ago [-]
I have a list of about 32 8-bit Logo implementations and the earliest is 1981 (Krell's and Terrapin on the Apple II). The latest is 1986 (Logotron on the BBC Micro). There were also 16-bit versions for DOS. After that there were other 16-bit implementations like Amiga Logo. Before that I think it was on mini-computers.
mariasykk 8 hours ago [-]
Logo is in my heart forever. The first PL I was introduced to and made me love programming for life. It was MSW Logo if I’m not mistaken and that turtle was a lot of fun.
derac 9 hours ago [-]
One of the first interesting programs I made was LOGO in flash (actionscript) :D It's a great tool for learning basic programming since it's interactive, graphical, and simple.
Imzadi72 8 hours ago [-]
I'm not going to thrash my first programming language, but do "kids" nowadays start with Scratch or something like that?
timbit42 4 hours ago [-]
Scratch is essentially Logo with draggable blocks instead of typing.
tialaramex 8 hours ago [-]
I think a lot of children are shown Python or one of the Python-like languages.
invader 7 hours ago [-]
I consider Logo an undeservedly forgotten technology that showed the world a glimpse of what computerized education really is, and Seymour Papert is a misunderstood genius ahead of his time.

The whole point was a very visual way of learning with immediate feedback, where you build stuff in order to understand it.

Papert based his own ideas of constructionism on children's cognitive development theories of Jean Piaget, a famous Swiss psychologist with whom he worked in the 50s - early 60s.

Logo pioneered a whole class of tools and languages built around constructivist ideas (e.g. Ozobot, Scratch, EToy, Processing, Design by Numbers...) and I hope these ideas will not be totally forgotten in the era of slop, when people prize ignorance and no longer seem to appreciate the concept of "build to understand".

tshapedrob 11 hours ago [-]
Berkeley Logo was one of my first programming languages. The idea of declaring functions with the keyword “to” still feels like a fun and good idea, even though of course it doesn’t matter. Just a different perspective.
juancn 10 hours ago [-]
Logo in Spanish in a C128 when I was in third grade started my journey in software.

After a while I was running laps around my teachers and I knew computers were for me.

whobre 11 hours ago [-]
11 hours ago [-]
10 hours ago [-]
spike021 9 hours ago [-]
Logo in either elementary or middle school in the early 00's was my first experience writing any code. Good times.
9 hours ago [-]
lormayna 10 hours ago [-]
I remember one of my professor that created a map of all Italian regions in logo. It was probably 1992.
mgkimsal 8 hours ago [-]
Logo unit testing supports a mock turtle.
unlux 10 hours ago [-]
this is so nostalgic. I remember going to my School's Computer Lab and trying to draw circles and then later some stars and stuff. so cool
dr_kiszonka 8 hours ago [-]
So I know a Lisp dialect? Fascinating.
timbit42 4 hours ago [-]
The main difference is Logo has fixed arity and so doesn't need parens. Lisp has variable arity and so needs parens.

So in Lisp you can say:

> (+ 1 2 3)

and it will add all the numbers together. In Logo, you have to say:

> 1 + 2 + 3

larodi 9 hours ago [-]
SVG paths are basically LOGO programs.
agumonkey 11 hours ago [-]
iirc logo had lambda and recursion, which means a lot of kids in the 80s were that close to become lispers
Jtsummers 10 hours ago [-]
Logo was directly inspired by Lisp and the first implementation was even written in Lisp.
cdaringe 9 hours ago [-]
I can’t read this website. The white text has insufficient contrast in the menus and the lightweight text is too thin!
mezzman 10 hours ago [-]
It's turtles all the way down
arnavpraneet 8 hours ago [-]
my first programming language!
dbg31415 9 hours ago [-]
Logo was the first programming language I ever learned. I was in third grade in Seattle, Washington, around 1989, and I absolutely loved it. Looking back, not hard to see that it was responsible for sparking a lifelong love of technology and programming.

TThe only reason we got to learn it at all was because one of the daycare workers was a graduate student at the University of Washington. She somehow got permission for any of the kids who were interested to use the school's computer lab. Which, I think, took some doing on her part.

Back then, computers were treated like sacred objects. They made a huge deal about kids using them. The whole first week of the class was basically some grumpy old guy with a white beard telling us, "These are not toys! These are expensive machines!"

We had to wash our hands before we were allowed into the computer room. The old guy would literally "hand check" us at the door. You had to hold out your hands and show him that they were clean before you were allowed anywhere near the computers.

Logo was a lot of fun. We had a competition to see who could draw the coolest thing. Just like foundation for a "hackathon" really. Every day, "OK, Kids, you have 30 minutes, let's see what you can do!" Was a lot of fun.

I had to ask my mom for a floppy disk. "Mom, I need $5 for class supplies..." And then I had to explain that it was for a computer disk... and she had to call the school to make sure I was getting the right thing... even though I told her 100 times that I needed an un-formatted 5.25" disk! Ha.

Anyway good memories here. Logo and HyperCard were gateway drugs.

cmrdporcupine 10 hours ago [-]
We used Logo on Apple IIs quite a bit in the 80s but I don't have fond memories because Logo is one of those things that at the time when using it one had no idea (and neither did the teachers teaching it) that there was something of much more substance behind it than just drawing lines and circles on the screen. Which was frankly kind of boring. We'd get as far as simple procedures but that's it.

There's a whole Lispy beauty behind the language that teachers didn't know how to transmit to the kids because they themselves didn't understand it. The emphasis on turtle graphics was limiting.

Towaway69 11 hours ago [-]
Not to be confused with NetLogo ;)

https://www.netlogo.org/

Night_Thastus 10 hours ago [-]
Are they totally unrelated?
Jtsummers 9 hours ago [-]
NetLogo is its own language, but definitely inspired by and modeled on the original Logo (thus the name). But it has some differences in syntax and semantics, and is oriented toward agent based modeling (which also introduces some new syntax and semantics).
jedberg 7 hours ago [-]
[dead]
the_homeless_go 11 hours ago [-]
[dead]
spider-mario 10 hours ago [-]
Could we please not make text light grey on white? It’s just barely AA compliant when bolded.

https://snook.ca/technical/colour_contrast/colour.html#fg=96...

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact
Rendered at 01:50:05 GMT+0000 (Coordinated Universal Time) with Vercel.