New #Fibonacci dweets

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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DaSpider

function u(t) {

t?b=a+(a=b):(a=0n,b=1n)
document.write(a+', ')

Jan 3 2023 1:55 AM UTC

}// 46/140

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#Fibonacci sequence infinity

u/Qwitter

Bigint big infinity bigger
u/4ce

Maybe small #bug in engine Dwitter. if open https://www.dwitter.net/d/26752 => 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55,... , and if open https://beta.dwitter.net/d/26752 => 1, 1, 2, 3, 5, 8, 13, 21, 34, 55,... (null 0, at first, in main Dwitter.net there and in beta.Dwitter.net not) .This reproduced in diferent browsers ? Yes. comment date 03.01.2023. ~_^
u/384.cz

yeah, 4ce

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CaptainMeat

function u(t) {

f=n=>{return parseInt(((((1+5**(1/2))/2)**n)-(((1-5**(1/2))/2)**n))/5**(1/2))}; throw `Fibonacci ${t&t}: ${f(t&t)}`

May 4 2022 5:56 PM UTC

}// 115/140

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#fibonacci

u/CaptainMeat

gets funky after 100

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tomxor

remix of d/18062 by u/tomxor

function u(t) {

for(a=t?b:[1],b=S,S=[],x.drawImage(c,0,1),p=1920;p--;x.fillStyle=S[p]?R():'tan',x.fillRect(p,0,1,1))
A=a[p],B=b[p],S[p]=A^B^C,C=(A^B)&C|A&B

Mar 25 2020 1:57 PM UTC

}// 139/140

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1920bit #Fibonacci sequence using 1-bit serial adder

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tomxor

remix of d/18061 by u/tomxor

function u(t) {

for(a=t?b:[1],b=S,S=[],x.drawImage(c,0,4),p=480;p--;x.fillStyle=S[p]?R():'tan',x.fillRect(p*4,0,4,4))
A=a[p],B=b[p],S[p]=A^B^C,C=(A^B)&C|A&B

Mar 25 2020 1:55 PM UTC

}// 140/140

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480bit #Fibonacci sequence using 1-bit serial adder

u/tomxor

Familiar!? Just realised that this is equivalent to an elementary cellular automata with a 2 state history.

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BalintCsala

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵩㴹㭩ⴭ㭸⹴牡湳景牭⡫㴮㘲⩃⡡㵓⡴⤪ㄮ㔷⤬猽⸶㈪匨愩Ⱝ猬欬眬眩⥸⹲散琨ㄬㄬ砮汩湥坩摴栽眽㌰〬眩ⱸ⹱畡摲慴楣䍵牶敔漨⡺㴱㔰⤫匨琩⩺ⱺⵓ⡴⤪稬眬眩㭸⹳瑲潫攨⤻`.replace(/u(..)/g,"$1%")))

Nov 8 2018 7:58 PM UTC

}// 131/140

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Fibonacci spiral

u/katkip

Owwww woottt thats awesome
u/rodrigo.siqueira

SOURCE CODE: for(c.width|=i=9;i--;x.transform(k=.62*C(a=S(t)*1.57),s=.62*S(a),-s,k,w,w))x.rect(1,1,x.lineWidth=w=300,w),x.quadraticCurveTo((z=150)+S(t)*z,z-S(t)*z,w,w);x.stroke();
u/rodrigo.siqueira

Animated Golden Rectangle #Fibonacci Sequence
u/vain

very cool golden ratio / rectangle fx. (never seen before like this, great!)

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katkip

remix of d/8663 by u/firegodjr

function u(t) {

c.width|=0
x.translate(960,540)
for(i=200;i-->0;)x.lineTo(4.8*i,0,0,0,0),x.rotate(S(t/2)/11)
x.fill("evenodd")

Oct 6 2018 1:59 PM UTC

}// 110/140

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u/firegodjr

#fibonacci

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cantelope

remix of d/10234 by u/Purpzie

function u(t) {

for(c.width=-1,з=0,_=[ф=1,п=ф];з++-20;)_.push(п+=_[з-ф]);x.fillText(_,0,9)

Oct 4 2018 4:42 PM UTC

}// 74/140

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u/magna

#fibonacci
u/magna

18 characters longer, avoids loop: x.fillText([c.width=-1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,67],-3,9) :D
u/donbright

#oeisA000045

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firegodjr

function u(t) {

F=a=>((p=1.62)**a-(-p)**-a)/2.2
with(x)for(c.width|=D=10,x.m=translate,m(8e2,9);D--;)arc(0,0,F(D+2)*9,0,p),m(0,F(D)*9),rotate(1.57),stroke()

Jun 16 2018 3:33 AM UTC

}// 140/140

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The first #fibonacci spiral to ever grace Dwitter! :D

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cantelope

function u(t) {

if(!t){w=1080;p=0.618;s=1.5708}with(x)lineWidth/=p,strokeRect(0,0,w,w),arc(w,w,w,s*2,s*3),stroke(),translate(w+w*p,0),rotate(s),scale(p,p)

Aug 21 2017 12:51 AM UTC

}// 138/140

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best fullscreen. Couldn't have done it without the help of the dark knight, who prefers to remain anonymous. :)

u/donbright

yeahhhhh!!!!! cool
u/cantelope

there's an odd bug in chrome where if hardware acceleration is disabled, or the dweet appears far down the page, the arcs close their paths and create unwelcome diagonal lines. I have a more robust version but it does not fit in 140b.
u/katkip

#fibonacci

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