New #prime 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.

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Ghoust

function u(t) {

c.width*=1
for(j=500;j;j--){a=Math.floor(t*300)+j
for(i=a;i>a-99;i--){i/a==Math.floor(i/a)?x.fillRect(960+S(a)*j*1.5,540+C(a)*j*1.5,9,9):0}}

Jul 29 2022 10:23 AM UTC

}// 140/140

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Prime Number Spiral

u/384.cz

#prime

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DaSpider

remix of d/21497 by u/DaSpider

function u(t) {

eval(unescape(escape`𭀿𜐺𫠽𜐻𩡯𬠨𪠽𜐰𞱪𛐭𞱮𚰫𚑻𬀽𫠽🐱🰰𞠱𞱦𫱲𚁫🐲𞱫🀽𫠪𚠮𝐻𚐨𫠥𪰫𚰩𯁼𚁰🐰𚐻𮀮𩡩𫁬𤱴𮑬𩐽𤠨𫐽𜠵𝐪𘑰𛁭𛁭𚐻𮀮𩡩𫁬𤡥𨱴𚀱𞐰𜀬𚁮𙐱𜀩𚠱𜀰𛀵𛀹𜀩𯑸𛡤𬡡𭱉𫑡𩱥𚁣𛀭𝐬𜀩`.replace(/u../g,'')))

Jan 31 2021 9:33 PM UTC

}// 118/140

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Prime number distribution 0-9

u/DaSpider

#Prime

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DaSpider

remix of d/21407 by u/DaSpider

function u(t) {

t?1:n=3
for(j=50;j--;n=2+n){p=1
for(k=3;k<=n**.5;k++)(n%k)||(p=0)
x.fillStyle=R(m=255*!p,m,m)
x.fillRect((n%100)*18,(n/50|0)%1e3,19,2)}

Jan 28 2021 9:55 PM UTC

}// 135/140

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Prime number distribution

u/smtsjhr

this seems interesting but i cant quite make sense of it. its like a puzzle and im dumb
u/DaSpider

#Prime

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DaSpider

remix of d/21347 by u/Qwitter

function u(t) {

t?n++:(document.write(`Prime Numbers`),n=2)
p=1;for(k=2;k<=n**.5;k++)(n%k)||(p=0)
document.write((p?`, `+n:``))

Jan 23 2021 6:55 PM UTC

}// 111/140

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u/Qwitter

nice
u/Xen

love it!
u/DaSpider

#Prime

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katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀪🐱𞱴𯁼𚁬🐰𚐻𬀽𮀽🡻𮠽𜐻𪑦𚁸🀲𚑺🐰𞱩𩠨𮀼𝀩𮠽𜐻𪑦𚁸𙐲🐽𜀦𙡸𙐳🐽𜀩𮠽𜀻𩡯𬠨𪐽𝐻𪐼𮀻𪐫🐲𚑩𩠨𮀥𪐽🐰𚑺🐰𞱲𩑴𭑲𫠠𮡽𞱸𛡦𫱮𭀽𙰸𨱭𘠧𞱸𛡦𪑬𫁔𩑸𭀨𫀬𜠰𜀬𝠰𜀩𞱬👰𚁦𬡡𫑥𚐿𩡲𨑭𩐺𫀻`.replace(/uD./g,'')))

Dec 17 2019 2:13 PM UTC

}// 128/140

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tried to make the fastest prime number checking algorithm (aks) #primes #prime #text #math

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pasghetti

function u(t) {

b=t*60*9|0
if(b>1){
z:for(d=b;d<b+9;d++){for(a=2;a*a<=d;a++)
if(d%a<1)continue z
x.fillRect(d*C(d)/8+c.width/2,d*S(d)/8+c.height/2,5,5)}}

Oct 13 2019 7:47 PM UTC

}// 137/140

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3blue1brown prime spiral pattern

u/metamero

i was just waiting for this dweet since i saw this video =]
u/joeytwiddle

#3b1b #prime #math

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joe.m

remix of d/16019 by u/joe.m

function u(t) {

if(!t){r=1,d=100}
for(z=d;z--;){
r++
n=0
for(i=r**.5|0;i>1&&n==0;i--)if((r/i)==(r/i|0))n=1
if(!n) x.fillRect(960+r/d*C(r),540+r/d*S(r),4,4)}

Oct 11 2019 9:48 AM UTC

}// 140/140

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now with a (slightly) less rubbish #prime test

u/pavel

91 for(d=z=99;z--;i||x.fillRect(960+r/d*C(r),540+r/d*S(r),4,4))for(r=t&&r+1,i=r**.5|0;r%i--;);
u/katkip

u used 3blue1brown video

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joe.m

remix of d/15861 by u/joe.m

function u(t) {

if(!t){for(i=n=2601;i--;u[i]=1)q=1;j=q*q}
if(u[q-1]&j<n){u[j-1]=0;x.fillRect(37*((j-1)%51),21*((j-1)/51|0),35,19);j+=q}else{q++;j=q*q}

Oct 1 2019 8:51 AM UTC

}// 134/140

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pavel, this one is for you #prime #sieve

u/pavel

nice 👍
u/username

#waitforit

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joe.m

remix of d/15836 by u/joe.m

function u(t) {

if(!t){for(i=n=2601;i--;u[i]=1)q=2;j=q*q}
if(u[q-1]&j<n){u[j-1]=0;x.fillRect(37*((j-1)%51),21*((j-1)/51|0),35,19);j+=q}else{q++;j=q*q}

Sep 30 2019 6:18 PM UTC

}// 134/140

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what's left is #prime

u/joe.m

#eratosthenes #sieve
u/joe.m

#slow_render
u/pavel

false, 1 is not prime :)

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taupelink

remix of d/14804 by u/taupelink

function u(t) {

t||(P=[2],n=2);f=X=>P.reduce((s,q)=>s|!(X%q),0);n>2&&f(n)||(P.push(n),x.fillText(n,(n%100)*19,10+10*(n/100|0)));n++

Aug 11 2019 3:28 AM UTC

}// 116/140

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List of #prime #primes, stored in an array. Best in fullscreen view.

dwitter.net | #prime