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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.

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Current theme challenge: #Food

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username

remix of d/15433 by u/username

function u(t) {

eval(unescape(escape`朽挮睩摴桞㴰㭦潲⡪㴴㭪ⴭ㬩景爨椽朻ⴭ椻砮晩汬剥捴⡩ⰵ㐰⵷⼲⭓⡩⼴㌩⨹⬨焽㤶〭椩⼲⨨焾㸳ㄩ⨪椬㈬眩⥷㴮㐪⨨椯㤹⴨琫権⨶┲㜫㔩⨪㈪ㄶㄫ㤬砮晩汬却祬攽恨獬⠤筩⼶紬㘸┬㔰╠`.replace(/u(..)/g,"$1%")))

Aug 19 2019 10:08 AM UTC

}// 130/140

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blobs splitting along the rainbow

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mildlybean

function u(t) {

for(i=0;999>i++;){h=Math.random(),w=Math.random(),e=h*6-t;x.fillStyle=R(S(e)*(q=255),S(e-2)*q,S(e-4)*q);x.fillRect(w*1920,h*999,9,9*S(w*9))}

Aug 18 2019 9:48 PM UTC

}// 140/140

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I ran out of characters. But this is cool... i guess

u/13thptr

you can remove the brackets of the for loop, doing for(i=999;i--;) is 1 byte shorter over your approach and 1920 can be approximated with 2e3
u/mildlybean

thanks, ill keep that in mind for future dweets

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firegodjr

function u(t) {

c.width|=a=.52
r=200
with(x)for(i=13;--i;beginPath())j=t+i,lineWidth=12-j%12,arc(S(l=a*i)*r+900,C(l)*r+500,80,v=-l-2*a,v+j%12*6.28),stroke()

Aug 15 2019 1:04 AM UTC

}// 140/140

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First attempt at recreating https://twitter.com/beesandbombs/status/1161…

u/firegodjr

#beesandbombs

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katkip

remix of d/15393 by u/katkip

function u(t) {

eval(unescape(escape`𒡩𩠨𘑴𚑻𬐽𦱝𞱦𫱲𚁩🐱𞐲𞱩𛐭𞰩𬐮𬁵𬱨𚁩𙐳𚑽𩡯𬠨𪐽𜐻𪐼𬐮𫁥𫡧𭁨𞱩𚰫𚑸𛡦𪑬𫁓𭁹𫁥👒𚁱𦱩𧐪𜐲𞀩𛁱𦱩𧐽𚁱𦱩𚰱𧐪𬑛𪐭𜑝𧠲𧡱𦱩𧐩𙐳𛁸𛡦𪑬𫁒𩑣𭀨𪐪𜐰𛀰𛀱𜀬𜐰𚐻𮀮𩁲𨑷𢑭𨑧𩐨𨰬𜀬𜐰𚐻`.replace(/u../g,'')))

Aug 11 2019 5:33 PM UTC

}// 124/140

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Extremely interesting rule I discovered!

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DataMeta

remix of d/12610 by u/ear7h

function u(t) {

w=960,h=540;for(i=0;i<70;i+=0.1)u=i*h/20,Q=(u-w)*(u-w)/4.2e5-1,
x.fillStyle=R(l=i^t*i%255,l,l),x.fillRect(u,h+S(t+i)*l*Q,d=9,9)

Aug 11 2019 5:18 AM UTC

}// 127/140

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u/magna

Sweet!

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taupelink

remix of d/15380 by u/taupelink

function u(t) {

g=(a,b)=>b?g(b,a%b):a;f=()=>Math.random()*1e7|0;t||(m=n=0);n++;g(f(),f())-1||m++;x.fillRect(n%1920,1080*(1-m/n),1,1);throw m/n

Aug 11 2019 4:25 AM UTC

}// 126/140

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If you take two random integers of at most 7 digits each, what is the probability that they are relatively prime? This simulation suggests somewhere around 60%

u/taupelink

In the graph, the x-axis shows number of trials, modulo 1920 (i.e. with wraparound). The y-axis shows % of trials with GCD 1, with 0% at bottom and 100% at top.
u/taupelink

After a little Web searching: Under more general conditions, the precise answer appears to be 6/π^2, or about .608. See, e.g., https://www.cut-the-knot.org/m/Probability/T…
u/aleamb

#math

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taupelink

remix of d/15323 by u/DataMeta

function u(t) {

c.width=560;for(i=315;i-=7;)for(j=315;j-=7;)
x.fillStyle=R(j/2+32*C(t),63+32*S(t),i/2),x.fillRect(122+i,j,g=(t*i^j*t)**.1*t%7,g)

Aug 9 2019 1:08 AM UTC

}// 128/140

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adding a dash of color to d/15323

u/DataMeta

Nice addition :)

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katkip

function u(t) {

c.width*=1;for(i=29;i--;)for(j=(i)|0;j--;)x.beginPath(),x.arc(960+C(j/i*6.28)*i*37,540+S(j/i*6.28)*i*37,30,0+C(t)*i,3+C(t)*i),x.fill();

Aug 6 2019 4:27 PM UTC

}// 135/140

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KilledByAPixel

remix of d/15272 by u/KilledByAPixel

function u(t) {

p=Math.PI
for(c.width|=0,k=59;k--;x.fill(),x.beginPath(t=-t))
for(j=10;j--;)x.arc(k%9*270,(q=k/9|0)*270,80+(j)%2*112,a=j*p/5+t/2+q%2*p,a)

Aug 5 2019 8:22 PM UTC

}// 137/140

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Star Gears

u/katkip

Awesome
u/KilledByAPixel

#gears

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KilledByAPixel

remix of d/15268 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👆🐨𦀬𦐬𦠬𠐩🐾𥀨𝀷𜐬𮀮𩡩𫁬𤡥𨱴𚁘𛁙𛁚𛁚𛁸𛡦𪑬𫁓𭁹𫁥👒𚁚𛀳𜠰𛑚𚠹𛁚𚠴𚐩𛁚🠲𝐿𡠨𦀭𤰨𠐩𚡚𛰴𛠶𛁙𛑃𚁁𚐪𦠯𝰬𦠪𛠹𝰬𠐪𚀮𞐵𚱓𚁴𚐯𞐹𚐫𥀨𛠳𚐩𞡔👭🐾𠰨𤐪𤐫𚰩𚡭𚐾𦠦𙡆𚁘𛁙𛁚𛰲𛁁𚱔𚀱𚐩𒡆𚀭𞐹𛁑🐳𞀳𛀳𝐹𛀭𜠩`.replace(/u../g,'')))

Aug 4 2019 7:04 PM UTC

}// 140/140

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Dweet of The Tentacle

u/rodrigo.siqueira

#tentacle