Dweets awesomed by u/erin

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: #Opposites

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pavel

function u(t) {

for(i=c.width|=0;j=--i>>5;x.fillRect(960*(z+S(j*j)+r*C(i))/z,3e3*(.2+m*(m<0&&-1)**i)/z,s=--m*9/z,s))m=(t+j/7)%2-1,r=m>0&&m/3,z=2+S(j)+r*S(i)

Mar 25 2020 8:28 AM UTC

}// 140/140

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Reflections on #rain

u/katkip

beautiful
u/aleamb

amazing
u/vain

amazing rain drop fx

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Cloud

remix of d/17759 by u/Cloud

function u(t) {

for(c.width|=i=400;i--;){
x.fillStyle=R(i/2)
x.fillRect(800+C(t*3-i/100)*50-i/2, 500+S(t*3-i/100)*10-i/2, 300+i, 300+i)
}

Feb 26 2020 7:19 PM UTC

}// 121/140

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#tonel

u/13thptr

#tunnel
u/vain

clever coding!

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xem

function u(t) {

for(n=.5,i=9e3;n=t/4*n*(1-n),i--;)i<300&&x.fillRect(t*99,1e3-n*1e3,2,2)

Jan 31 2020 4:44 PM UTC

}// 71/140

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Logistic map (to scale)

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KilledByAPixel

remix of d/17100 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁔🐹𝠰𛁴𯁼𭁲𨑮𬱬𨑴𩐨𥀬𝐴𜀩𞱔𛐭𞱲𩑳𭁯𬡥𚁦𪑬𫁒𩑣𭀨𪠪𤰨𪠫𭀩𛁪𚡓𚁪𚡪𚱴𚐬𪠬𪠩𚐩𬱡𭡥𚁳𨱡𫁥𚀱𛀭𜐩𚐬𬡯𭁡𭁥𚀨𥀫𥀥𜠩𚠮𜰹𜠷𚐬𨱬𪑰𚁮𩑷𘁐𨑴𪀲𡀨𙱭𜀠𜁶𜡥𜱨𜡥𜰧𚐩𛁦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𪠽𚁔🠾𝀩𚠱𞑽𘀹𞐥𝐰𙑠`.replace(/u../g,'')))

Jan 8 2020 5:07 AM UTC

}// 140/140

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Kaleidoscope #6

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rodrigo.siqueira

function u(t) {

η=.1
ℵ=1/t
for(X=-3;X<3;X+=.01){
y=X**3-X*2
ℵ=ℵ-η*(ℵ**3-2*ℵ)
x.fillRect(940+X*400,-y*100+500,5,5)
}
x.fillRect(910+ℵ*400,470,60,60)
throw(ℵ)

Aug 21 2019 1:45 PM UTC

}// 140/140

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Gradient Descent (iterative) algorithm used to calculate sqrt(2). The big dots are the two roots -sqrt(2) and +sqrt(2) of equation Y=X**3-X*2. The Gradient Descent is an optimization algorithm for finding a local minimum of a function near a starting point, taking successive steps in the direction of the negative of the gradient. x[n+1]=x[n]−η(∇f)xn where η is the "Learning Rate". Gradient Descent is widely used for training Machine Learning models. #neural #ai

u/rodrigo.siqueira

Simple version that calculates sqrt(2). If you change initial "x" to -1, it will converge to -sqrt(2), that is the other root of the equation Y=X**3-X*2. Code: x = 1; learning_rate = .1; for(i=0;i<50;i++) { x = x - learning_rate * (x**3 - 2*x) } throw(x);

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𫀽𨰮𭱩𩁴𪁼👴𙐽𝀻𫀭𛐻𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀵𜀬𫰿𝐰𞠱𩐳𚐩𪐽𫀥𜰬𪠽𫀯𜰦𜐵𛁫👬𛰴𞀦𜐵𛁸𛡦𪑬𫁓𭁹𫁥👒𚁩𚰱🀼𝠩𛁸𛡳𩑴𥁲𨑮𬱦𫱲𫐨𪐭𜑼𜐬𛐮𝐬𫰽𛑩𙐲𛀱𚱯𚠱𛠵𛀵𜀪𚀱𞐫𪰭𪠩𛀲𝐪𚀳𞀫𜠪𭀭𪰭𪠭𞀯𚀱𚰲𚠪𚀴𝐭𪰭𪠭𭀪𜐵𚐩𚐩`.replace(/u../g,'')))

Jul 13 2019 3:37 AM UTC

}// 138/140

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Blocks (https://dribbble.com/shots/1783699-Blocks)

Show more comments…
u/pavel

190 for(l=c.width|=t%=4;l--;x.fillRect(0,0,50,o?50:1e3))i=l%3,j=l/3&15,k=l/48&15,x.fillStyle=R(i+1<<6),x.setTransform(i-1|1,-.5,o=-i%2,1+o*1.5,50*(19+k-j),25*(38+2*t-k-j-8/(1+2**(45-k-j-t*15))))
u/KilledByAPixel

👍
u/aleamb

wow!!
u/username

actual f
u/katkip

awesome #compressed
u/katkip

#d3 #loop

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pavel

remix of d/14840 by u/pavel

function u(t) {

x.beginPath(x.lineWidth=FPS=p=Math.PI)
k=frame
k%2?n=99:(n=2+k/2,r/=C(p/n))
for(j=n+1;j--;)x.arc(960,540,t?r:r=60,a=2*p*j/n+11,a)
x.stroke()

Jun 30 2019 10:28 PM UTC

}// 140/140

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u/katkip

Wow! Perfect geometry

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taupelink

function u(t) {

t||(a=[[]],r=k=0);x.font=`3em"`
a[r][k]=k%r?a[r-1][k-1]+a[r-1][k]:1
r<16&&x.fillText(a[r][k],960-60*r+120*k,60*r+60)
++k>r&&(a[++r]=[],k=0)

Jun 18 2019 1:17 AM UTC

}// 139/140

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Pascal's Triangle #math #recursive #recursion

u/katkip

Awesome!
u/donbright

#numbertheory

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katkip

function u(t) {

x.font='10cm"';x.fillText(`Sort by new`,C(t*999)*22+39,560+C(t*99)*9)

Jun 2 2019 1:08 PM UTC

}// 69/140

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Sort by new please! Don't look just at the hot category. Also the community is very small! There is no fun if there are only few people active! Let's spread the network and make the community bigger!

Show more comments…
u/geb

<3
u/katkip

Wow this actually got liked, nice! Revolution :))
u/Xen

geb ^^ you back bro?
u/MAxSaL

We should make a few tutorials on how to get started. It can be very intimidating - I seldom understand the code posted by others.
u/SMON

Is there a place other then the comments where people discuss things?
u/DataMeta

The dwitter discord! Link is in the 'about' tab.

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KilledByAPixel

function u(t) {

eval(unescape(escape`猽挮獴祬攻献扡捫杲潵湤䉬敮摍潤攽❤楦晥牥湣攧㭦潲⡢㵛椽㤹崻ⴭ椻献扡捫杲潵湤㵢⥢孩ⴱ崽恲慤楡氭杲慤楥湴⠤笲〫㈰⩃⡩⼹⥽灸⁡琠⑻㔰⬮㔪椪匨䘽㤹⩴⽩⭩⥽┤笵〫⸲⨲⩩⩃⡆⥽┬⍆䙆Ⱓ〰〩总`.replace(/u(..)/g,"$1%")))//⚛

May 27 2019 1:06 AM UTC

}// 140/140

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𝐀𝐓𝐎𝐌𝐈𝐂

u/katkip

This looks dope

dwitter.net | erin (4633)