[HN Gopher] T * sin (t)' [?] Ornamented Christmas Tree (2013)
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T * sin (t)' [?] Ornamented Christmas Tree (2013)
Author : ryeguy_24
Score : 363 points
Date : 2024-12-25 01:07 UTC (21 hours ago)
(HTM) web link (community.wolfram.com)
(TXT) w3m dump (community.wolfram.com)
| ryeguy_24 wrote:
| Merry Christmas HN. Ever year, the original T * sin(t) Christmas
| tree gets posted. This year, I wanted to call out my favorite
| modification by Silvia Hao. It's beautiful. One year, I'll try to
| add to its beauty. But for now, I'll just appreciate it. She
| posted it here: https://community.wolfram.com/groups/-/m/t/175891
| Arnavion wrote:
| Silvia Hao's version is the one submitted here to HN, actually.
| dylan604 wrote:
| Someone was too excited about Santa to actually you know
| click the link
| frogulis wrote:
| The GP commenter (ryeguy_24) is the original poster of this
| article, leaving additional information about what they
| posted.
| acer4666 wrote:
| Some was too excited about Santa to, you know, read the
| usernames of the submitter and commenter
| TheSpiceIsLife wrote:
| Some kind of Pareto Principle: 80% of people read 20% of
| the usernames.
| deskr wrote:
| Wrong. It says that 20% of people will argue with you and
| be confident that they are right even though they are
| more wrong.
| romanobro56 wrote:
| Pareto victim right here
| JadeNB wrote:
| > Pareto victim right here
|
| I'm pretty sure deskr was making a joke.
| TheSpiceIsLife wrote:
| I chuckled
| TheSpiceIsLife wrote:
| 100% of the people I live with will argue with me 20% of
| the time and be wrong 80% of those times.
| Arnavion wrote:
| Guilty as charged.
| JadeNB wrote:
| I checked the post, but it's from someone who's far more
| comfortable with Mathematica than I am, so I hope you won't
| mind my asking about the maths.
|
| First, the T vs. t in T * sin(t) doesn't mean anything, right?
| Second, the ' in the title T * sin(t)' doesn't belong, right?
|
| Then I think that this is graphing essentially (t * sin(t), t *
| cos(t), t + something), which is a cone if the something is
| constant, which I believe it is--and that certainly matches the
| graph. And the rest is about choosing an aesthetically pleasing
| step size and accomplishing the lovely twinkling and colors,
| right?
| ryeguy_24 wrote:
| I added the prime in the title to indicate that this version
| is a bit different from the original t * sin(t) post.
| JadeNB wrote:
| OK, thanks. Is the rest of it right?
| layer8 wrote:
| Or a drill.
| block_dagger wrote:
| This is not a drill. It really is Christmas.
| layer8 wrote:
| The function _is_ neither a drill nor a Christmas tree, but
| similar to how it happens to look ([?]) like a Christmas
| tree, it also happens to look like a drill. This is what I
| wanted to point out. It's a multipurpose function.
| DrSAR wrote:
| It is also not a pipe
| arcticbull wrote:
| Cici n'est pas un arbre de Noel tabarnak
| bjconlan wrote:
| Haha, oh I miss the Quebecois. Appropriation of Catholic
| vernacular make for the best profanities.
| Uncorrelated wrote:
| block_dagger was making a pun based on the sense of drill
| as a training exercise. A similar joke went over the heads
| of nearly everyone on a recent episode of Taskmaster:
|
| https://www.youtube.com/watch?v=6PJkA3o_Im0
| noduerme wrote:
| English being the global language makes it easier to get
| a lift, but much harder for anyone to pick you up.
| corobo wrote:
| I wish I had more to add, but I do not. This proper tickled
| me, thank you. lmao
| leeoniya wrote:
| https://github.com/anvaka/atree
|
| https://js1k.com/2010-xmas/demo/856
|
| http://www.romancortes.com/blog/how-i-did-the-1kb-christmas-...
| matsemann wrote:
| Here's variants using 140 characters of Javascript:
| https://www.dwitter.net/h/christmas
| BobbyTables2 wrote:
| Now make 30% of the bulbs randomly burn out :)
| hippich wrote:
| Randomly wouldn't be that bad. But whole segments - way more
| noticable!
| nuodag wrote:
| usually a bunch of lights are wired in series, if one burns
| out all stay dark.
|
| Find and replace the broken one, and all light again!
| theodpHN wrote:
| Damped Oscillation Xmas Tree
| https://communities.sas.com/t5/Graphics-Programming/Fun-With...
| theodpHN wrote:
| GIF Xmas Tree, GIF Xmas Tree...
| https://communities.sas.com/t5/Graphics-Programming/Fun-with...
| theodpHN wrote:
| A 'Traveling Santa Tour' Through U.S. Capital Cities
| https://communities.sas.com/t5/New-SAS-User/Fun-With-SAS-ODS...
| Lerc wrote:
| I made this Bauble dweet as a Christmas themed exercise in 2020
| https://www.dwitter.net/d/20993 function u(t) {
| t||(c.width/=6) // shrink canvas to 1/6 at t==0
| M=a=>x.filter=a?"none":"blur(1px)brightness(90%"
| M();x.drawImage(c,0,0) for(i=n=90;--i;)
| x.fillRect( 160-S(X=i+t*4)*(1-(v=C(i*n))*v)*n,
| v*n+n, 4, 2,
| x.fillStyle="#F"+(i+10),M(C(X)<0)) }
|
| with u(t) is called 60 times per second. t: elapsed time in
| seconds. c: A 1920x1080 canvas. x: A 2D context for that canvas.
| S: Math.sin C: Math.cos
| noduerme wrote:
| I went to Hopscotch in Portland with some friends tonight, tried
| out the "quantum trampoline" [0]... spent most of my time in
| socks wondering if that was written in plain ol' javascript or
| p5. Happy Holidays, folks.
|
| [0] https://www.behance.net/kuflex?locale=en_US#
| foobar1962 wrote:
| My first time seeing it. Thanks for posting, and thanks to HN for
| being the kind of place that stuff like this gets posted.
| Alifatisk wrote:
| I think this would be perfect on openprocessing.org, I just don't
| know how to implement that.
| jll29 wrote:
| That's a beautiful animation (and useful maths ;-).
|
| In the spirit of minimalism, Merry Christmas to all HNers with
| this little but time-tested command: $ xmastree 5
| 9 2024` *
| *** *****
| ******* *
| *** *****
| ******* *
| *** *****
| ******* *
| *** *****
| ******* ***
| ***
| ***
| ***
|
| Source:
| https://github.com/jochenleidner/ltools/blob/main/src/bin/xm...
| bazzargh wrote:
| Here's one I did for the bbcmicrobot using a Chaos Game approach
|
| https://bbcmic.ro/?t=8W1n6
| belter wrote:
| Happy Festive Season! A nice one from Desmos:
| https://www.desmos.com/calculator/wgunyn2yd0
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