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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: #Food

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taupelink

remix of d/14804 by u/taupelink

function u(t) {

L=X=>X?1+L(X/10|0):0;c.width=80;n=0;f=X=>X?(n++,f(X>>1)+X%2):'';k=t?k+1:8;x.fillText(l=k>>3,70-5*L(l),10);x.fillText(f(l),70-5*n,20)

Aug 10 2019 9:45 PM UTC

}// 132/140

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base-2 expansions, right-justified (more or less)

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taupelink

remix of d/15365 by u/taupelink

function u(t) {

c.width=500;p=[23,29,31,37][(frame>>5)%4];m=1;for(n=p,o=1;--n;x.fillText(m,30+12*m,7*o++))m*=n,m%=p,x.fillText(o-1?'x'+n+'≡':p+'-1=',0,7*o)

Aug 10 2019 7:19 PM UTC

}// 139/140

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Illustration of Wilson's theorem. For any prime p, (p-1)! is congruent to p-1 mod p,

u/joeytwiddle

😯🥴🤤

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KilledByAPixel

remix of d/15348 by u/katkip

function u(t) {

c.width|=p=44/7
for(w=i=500;i--;x.lineTo(960+S(q*p*2)*900*C(t/3+p*q),540+C(q**3*p*8)*w*S(t/5+p*q)))q=i/w
x.rect(0,0,2e3,2e3)
x.fill`evenodd`

Aug 10 2019 4:50 PM UTC

}// 140/140

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Remix 9 #rc_kbap

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DataMeta

function u(t) {

r=Math.random;d=r(e=r(f=r()));
for(i=255;i--;x.fillStyle=R(i*d,i*e,i*f,.009))
x.fillRect(960+(g=S(t)*i/.7),540+(h=C(t)*i/.7),-g*d,-h*e)

Aug 10 2019 4:22 PM UTC

}// 135/140

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on led-based screens it both blends to gray more, and displays more vibrant primary-adjacent colors than on lcd

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username

remix of d/5437 by u/BackendForth

function u(t) {

for(i=c.width^=0;--i;x.fillRect(i,540-w/2+S(i/43)*9+(q=960-i)/2*(q>>31)**i,2,w))w=.4**(i/99-t*6%27+5)**2*161+9

Aug 10 2019 11:49 AM UTC

}// 110/140

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split

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tomxor

remix of d/15367 by u/tomxor

function u(t) {

eval(unescape(escape`瑼籸⹦楬汒散琨愽〬戽〬挮睩摴株㴴Ᵽ⹨敩杨琪㴴⤻砮晩汬却祬攽✣晦昧㭦潲⡩㴱攵㭩ⴭ㭸⹦楬汒散琨愪猭㘴〬截猫猬ㄬ⸰㌩⥲㴰簴⩍慴栮牡湤潭⡳㴲㔶〩ⱡ⬽⸳⨨爭愫截匨愪㌮ㄴ⤩Ɫ⬽⸳⨨〭愪戫䌨愪㌮ㄴ⤩`.replace(/u(..)/g,"$1%")))

Aug 10 2019 11:43 AM UTC

}// 140/140

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Chaos Photographer, Pic 2 - HQ 4K Render

u/tomxor

Takes ~4min @6fps, right-click save-image for better downsampling quality, FireFox gives smoother quantization: https://imgur.com/gallery/BnWGfDB

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tomxor

remix of d/15329 by u/tomxor

function u(t) {

for(a=b=0,i=1e4*(t<8);i--;x.fillRect(a*640-160,b*640+640,1,.05))
r=0|4*Math.random(),
a+=.3*(r-a+b*S(a*3.14)),
b+=.3*(0-a*b+C(a*3.14))

Aug 10 2019 11:19 AM UTC

}// 134/140

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Chaos Photographer, Pic 2

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taupelink

remix of d/14936 by u/taupelink

function u(t) {

c.width=500;p=37;m=1;for(n=p,o=1;--n;x.fillText(m,30+12*m,7*o++))m*=n,m%=p,o-1&&x.fillText('x'+n+'≡',0,7*o)

Aug 10 2019 4:39 AM UTC

}// 107/140

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Illustration of Wilson's theorem: 37 is prime, and 36! is congruent to 36 mod 37. #numbertheory https://en.wikipedia.org/wiki/Wilson%27s_the…

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taupelink

remix of d/14940 by u/taupelink

function u(t) {

g=(a,b)=>b?g(b,a%b):a;j=t?j+1:33;for(i=32;i--;)x.fillStyle=`hsl(${99*i%360},99%,${10*g(i,j/30|0)}%)`,x.fillRect(i%8*240,(i>>3)*270,235,266)

Aug 10 2019 4:25 AM UTC

}// 139/140

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Using a GCD formula for lightness

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taupelink

remix of d/15316 by u/taupelink

function u(t) {

for(i=1e3,d=e=f=0;i--;)x.fillRect(d*480,e*216,1,1),d+=((r=Math.random(l=.8)*6|0)-1-d+f*f*S((e+f)*4)**2)*l,e+=(r%4-e+S(d)*e*f)*l,f+=(r%2-f)*l

Aug 10 2019 12:12 AM UTC

}// 140/140

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d/15361