Dweets awesomed by u/taupelink

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

function u(t) {

t||(c.width=162,r=X=4567,s=Y=89,h=l=n=1,i=k=0)
r&&x.fillText(h+`x${X}+(${k})x${Y}=`+r,0,n++*9),q=r/s|0,[h,k,r,i,l,s]=[i,l,s,h-q*i,k-q*l,r%s]

Jul 1 2019 4:45 AM UTC

}// 140/140

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Extended Euclidean algorithm, to find h, k such that hX+kY=gcd(X,Y) #math #numbertheory

u/durian-favored-monster

i remember this in high school it was very cool! good job! this is the best text one i've seen
u/geb

EEA is so cool!

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taupelink

function u(t) {

c.width=500;p=37;a=2+t|0;for(n=0,m=a;++n<=p;)x.fillStyle=R((n-1)%(p-1)?0:255),x.fillText(n,270+(k=40+n)*C(z=m*6.28/p),140-k*S(z)),m*=a,m%=p

Jul 1 2019 1:21 AM UTC

}// 139/140

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Demonstration of Fermat's little theorem. Powers of 2, 3, 4..., modulo 37, arranged around a circle broken up into 37 equal arcs. #math #numbertheory https://en.wikipedia.org/wiki/Fermat%27s_lit…

u/donbright

p is 37?
u/taupelink

Yep, I picked an arbitrary prime number for demonstration purposes
u/donbright

awesp,e

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username

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👲👮🐾𤰨𚁩𚱴𚠶𜀩𚡪𚠪𫠫𞐩𚠹𧠰𒡦𫱲𚁩🐱𝰻𪐭𛐻𡡐𤰽𛠳𚑦𫱲𚁪🐳𜀻𪠭𛐻𮀮𬱴𬡯𪱥𚀩𚑦𫱲𚁸𛡢𩑧𪑮𤁡𭁨𚁫🐹𞐫𬠨𝰩𚠹𚐻𪰭𛐻𮀮𫁩𫡥𥁯𚀱𜠰𚡩𚱦𚁓𚐬𜐲𜀪𚁪𙐹𚐫𩠨𠰩𚐩𩠽𡠽🠴𚡲𚀴𚐪𡠨𬠨𜰩𚡫𛰹𞐩𚰳𚡲𚀵𚐪𡠨𬠨𜠩𚡫𛰹𞐩`.replace(/u../g,'')))

Jun 30 2019 11:46 AM UTC

}// 140/140

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doodles you can actually take a look at (#waitforit, fullscreen advised)

u/joeytwiddle

doctor's prescriptions
u/geb

#background

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username

function u(t) {

for(c.width|=i=17;i--;)x.fillRect(3e2+i*76+S(t)*3e2,400+S(t*i)*99,43,2e2)

Jun 30 2019 10:43 AM UTC

}// 73/140

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#default pendulums :)

u/username

awesome patterns
u/username

just what real pendulums look like :)
u/katkip

>:\ ??
u/katkip

these patterns are everywhere S() is

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taupelink

function u(t) {

t||(c.width=600,n=1);x.fillText("\"Someone walks into a bar&tells the Recursive Bar Joke better:",n*9,n++*9);throw "Gets funnier every time"

Jun 29 2019 4:58 PM UTC

}// 140/140

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A Recursive Bar Joke. #recursive #recursion #silly

u/katkip

um ok
u/metamero

my kind of humour

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joeytwiddle

remix of d/14824 by u/donbright

function u(t) {

c.width=400
d=(r,T)=>x.fillText(T,200+r*S(a=i/1.91),115-r*C(a))
for(i=N=t|0;i>1;i--)
for(N%i||d(60+i,i),k=50;k--;)N%i||d(k,'*')

Jun 29 2019 4:36 AM UTC

}// 127/140

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Prime factors on a clock #primes #math

Show more comments…
u/joeytwiddle

Shouts to donbright and taupelink!
u/joeytwiddle

35, 55, 77, 95, 115 and 119 all draw a lambda
u/katkip

Wow
u/taupelink

yay
u/DataMeta

Noice!
u/joeytwiddle

Oops this shows all factors, not just prime factors
u/donbright

hee hee sorry my description on the original was slightly misleading
u/donbright

you have golfed it down to where you might actually be able to do something only with prime factors
u/donbright

holy smokes... i just realized something. if you express an integer using this method, there are only 2 to the twelfth possible representations, which is 4096
u/joeytwiddle

Even fewer, since 4, 6, 8, 9, 10, and 12 never appear alone
u/joeytwiddle

They all light up at t=13860, after 3.85 hours #waitforit
u/joeytwiddle

For seconds/minutes use S(a=i/9.55) and d(60+i/4,i)
u/joeytwiddle

To see factors of odd numbers only, and quickly: i=N=t*22|1
u/donbright

cool

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donbright

remix of d/14804 by u/taupelink

function u(t) {

c.width=400
for(i=N=t>>33<<32;i>0;i--)
for(k=90;k--;){U=200+k*S(t+i)
V=99+k*C(t+i)
N%i?0:k>80?(x.fillText(i,U,V),k=80):x.fillRect(U,V,2,2)}

Jun 28 2019 11:57 PM UTC

}// 139/140

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prime o'clock in the morning

u/donbright

thanks to @taupelink for inspiration
u/taupelink

yay!
u/joeytwiddle

Fascinating! #primes #math U=200+k*S(a=i/1.91),V=99-k*C(a)

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Fime

function u(t) {

px=[960,0,1920];py=[0,1080,1080];dx=dy=0
for(;;){
r=Math.floor(Math.random()*3)
dx+=(px[r]-dx)/2
dy+=(py[r]-dy)/2
x.fillRect(dx,dy,1,1)
}

Jun 28 2019 2:29 PM UTC

}// 138/140

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Sierpinski Triangle by randomly moving a point around

u/Xen

nice!, was my original idea to use chaos game for a better golf ;-)

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New_Core

function u(t) {

for(c.width|=i=4;i--;x.fillText("ZOOM|DWITTER|BETTER|A".split('|')[0|i],960,540+Z*12))Z=5**T(i*.8+t/6),x.textAlign="center",x.font=Z+"cm'"

Jun 28 2019 9:36 AM UTC

}// 139/140

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u/Xen

nice
u/katkip

nice

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taupelink

function u(t) {

c.width|=0;f=X=>{for(i=2;i*i<=X;i++)if(X%i==0)return i+'*'+f(X/i);return X};k=frame/6|0;x.font='5em"';x.fillText(k+'='+f(k),0,540)

Jun 28 2019 1:01 AM UTC

}// 130/140

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factorization into #prime products. #math

u/taupelink

simple #recursion #recursive
u/Xen

very clever
u/katkip

wow
u/donbright

#numbertheory

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