New #Mandelbrot 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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nonce

remix of d/894 by u/iverjo

function u(t) {

for(i=c.width=99;i--;){for(j=55;j--;){for(k=32,a=b=0;--k&&a*a+b*b<4;a=_)_=a*a-b*b+(i-27)/t**3-7/4,b=2*a*b+(j-27)/t**3;x.fillRect(i,j,1,!k)}}

Apr 2 2017 3:40 AM UTC

}// 140/140

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This is a zoom into the mini-mandelbrot at -1.75 + 0i

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u/donbright

super cool, amazing.
u/Renaud___

Nice
u/jick

Holy cow, this is great.
u/ObjectDisoriented

Did you just do a low res mandlebrot in 140 characters? Way more awesomes needed.
u/sigveseb

Nice! Here's mine from a while back: https://www.dwitter.net/d/1735
u/iverjo

#mandelbrot #fractal
u/katkip

no way

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sigveseb

function u(t) {

t*=5;for(c.width=s=X=64;X--;)for(Y=37;Y--;1-Q*Q-W*W>0&&x.fillRect(X,Y,1,1))for(j=40,Q=W=E=0;j--;Q=E)E=Q*Q-W*W-X/t/t+5/t,W=2*W*Q-Y/t/t+.66

Mar 2 2017 2:02 AM UTC

}// 137/140

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u/sfz

Nice Mandelbrorshach!
u/iverjo

That's pretty impressive
u/sigveseb

#fractal #zoom
u/katkip

Awesome
u/katkip

#mandelbrot

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iverjo

remix of d/123 by u/icecuber

function u(t) {

i=frame;for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1,a=c;x.fillStyle=R(k,j,i);x.fillRect(i,j,1,S(k/9))}

Feb 22 2017 6:10 PM UTC

}// 140/140

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Color version, a minified version of myJS's suggestion

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u/bakkot

golf'd slightly harder on general principles: i=frame;for(j=1080;j--;x.fillRect(i,j,1,S(k/9),x.fillStyle=R(k,j,i)))for(a=b=0,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1
u/donbright

niiiice
u/Krachwumm

This is freaking amazing. Even if it would have taken you 1000 characters
u/iverjo

Thanks bakkot! I golfed your version even further down to 134 characters: for(j=1080;j--;x.fillRect(i=frame,j,1,S(k/9),x.fillStyle=R(k,j,i)))for(a=b=0,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1
u/iverjo

Feel free to play with the colors! There's room for improvement
u/hamptonio

That's a work of art man
u/SpecialAgent

I must commend you! Did my research and got a working mandelbrot, but to golf it to 140 and get the speed is very very difficult! Wow. I will study your dweet now :)
u/iverjo

#fractal
u/iverjo

#mandelbrot
u/iverjo

#slow_render
u/f8f82804

#scanline

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p01

function u(t) {

c.width|=0;for(n=200;n-=1/64;x.fillRect(n%3*666,n*5,h=8-k,h))for(r=C(t*3),i=S(t*4),k=28;--k/r;i=j)j=2*r*i+1-n/99,r=r*r-i*i+1-n%3

Feb 21 2017 9:42 PM UTC

}// 128/140

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u/donbright

wow!
u/iverjo

#fractal
u/galactustrombone

IS THAT THE MANDELBROT SET?
u/katkip

yep
u/joeytwiddle

#mandelbrot
u/DaSpider

Somehow this runs much faster in my codebase https://repl.it/@rogerio_neves/Dwitter-codeb…

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sigveseb

function u(t) {

s=64;for(i=s*s;i--;x.fillStyle=R(s*(1-Q*Q-W*W)),x.fillRect(X*6,Y*6,6,6))for(j=70,Q=W=E=0;j--;Q=E)Y=i/s,X=i%s,E=Q*Q-W*W-X/t/t,W=2*W*Q-Y/t/t+1

Jan 8 2016 1:43 AM UTC

}// 140/140

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