Top dweets 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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

taupelink

remix of d/15591 by u/taupelink

function u(t) {

for(i=d=e=f=1e3;i--;x.fillRect(d*z,e*z,f,f))[d,e,f]=[1+(r=1+Math.random(z=170)*9|0)+f*C(d)/(q=r%3+r/20),f*(1-S(f)/3)*(2-C(d+f)),q+.1/f]

Sep 1 2019 12:34 AM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

d/15593

u/DataMeta

I see people with elaborate headgear facing away or robots facing us
u/tomxor

hah, same, but not the robots

show FPS hide FPS share 1 remix fullscreen

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

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

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

show FPS hide FPS share fullscreen

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

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

adding a dash of color to d/15323

u/DataMeta

Nice addition :)

show FPS hide FPS share fullscreen

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

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

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!

show FPS hide FPS share fullscreen

taupelink

remix of d/14724 by u/katkip

function u(t) {

c.width=192;for(i=7;i--;)x.fillStyle=`hsl(${i*60} ${q=i?5:0}0% 90%)`,x.beginPath(x.fill(x.arc(96+C(n=1.05*i+2*t)*q*6,54+S(n)*q*6,15,0,7)))

Jun 23 2019 7:52 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Welcome to dwitternet. This is dwitternet. You can do anything at dwitternet! #loading cf. https://html5zombo.com/

u/taupelink

Inspired by a 20-year-old meme. https://en.wikipedia.org/wiki/Zombo.com
u/joeytwiddle

ZomboCom <3
u/donbright

awww

show FPS hide FPS share fullscreen

taupelink

function u(t) {

c.width|=0,x.font="300pt sans",z="ACT I",p='🔫',s=(t%22/3)|0,s>5&&(s=5)
x.fillText([z,p,z+'I',p,z+"II",'💥'+p][s],99*[4,9,4,9,3,5][s],650)

Jun 22 2019 4:24 AM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Chekhov's water pistol emoji. #silly

show FPS hide FPS share fullscreen

taupelink

function u(t) {

t||(a=[],n=0)
x.fillRect(0,0,b=2e3,b)
a.push(T(t)*6.28)
++n<b||a.shift()
k=-b/2;a.forEach(_=>x.clearRect(960+k*C(_+t),540+k++*S(_+t/2),5,5))

Jun 20 2019 1:20 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Spinning rotating disc thing

Show more comments…
u/taupelink

I feel like I've seen this before, but I'm not sure where
u/taupelink

The "*6.28" can be omitted...I had had Math.random in place of T, but it didn't fit
u/taupelink

ah, it is similar to this black hole dweet by @ellisk1 : d/5056
u/Phantasmos

Hello. Is there a way to download this? Also if yes, can images created here be used?
u/katkip

u/Phantasmos use capjs to record a gif
u/katkip

http://capjs.3d2k.com/
u/joeytwiddle

Nice, although I start to feel a bit queasy when I imagine it's the entire galaxy
u/donbright

love it

show FPS hide FPS share 2 remixes fullscreen

taupelink

function u(t) {

w=1920;h=1080;for(i=99;i--;){X=(r=Math.random)()*w,Y=r()*h
x.fillStyle=`hsl(${X/6-99*t%360},90%,${Y/12}%,.1)`
x.fillRect(X,h-Y,s=r()*99,s)}

Jun 15 2019 6:11 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

hsl color rotation with random rectangles

u/joeytwiddle

Stains: w=1920;h=1080;r=Math.random;for(i=99;i--;)X=r()*w,Y=r()*h,x.fillStyle=hsl(${X/6+999*t},90%,${Y/21+20}%,.013),x.fillRect(X,h-Y,s=r()*300,s)

show FPS hide FPS share fullscreen

taupelink

function u(t) {

x.fillRect(0,0,w=2e3,w);f=A=>x.clearRect(...A);f([0,0,w,400]);for(i=52;i--;){f([i*50-300+S(t)*300,i+1&1&&i<31&&i>13?600:400,50,680])}

Jun 13 2019 4:00 AM UTC

}// 133/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

all negative space #default

u/taupelink

If you're seeing artifacts, you can insert "|0" to the right of S(t)*300

show FPS hide FPS share fullscreen

taupelink

function u(t) {

C=100
c.width|=0
for(i=9;i--;)x.fill(new Path2D(`M${C*(4+i+3*S(t))} 400 h50 v${2*C} h-50 v${-2*C}`))

Jun 9 2019 9:57 PM UTC

}// 101/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#default with #path2D

u/katkip

nice
u/taupelink

Notes: The v${-2*C} at the end can be omitted. I regret my choice of "C" for a variable name--that's cosine :)

dwitter.net | taupelink (7550)