JS1k: The JavaScript code golfing competition

for(_='g.BerD),OBsetPropDty("--Q",jiOQyj$m.#(1+#sqrt(5)GonFy.KKfFtSJjb[S]ZA[N][YwidthW)jVXV#Uen`an_a=>^Xj^sin(#3*a="sitiF)**(2*aco0%#pow(a,tyle.s,left)/2s(.height1x[i]"\\u221AXj#.backgroundt.innDHTML=vminj	b.app`dChild(],["2)X"+,i=-4;4>i;i+=.01).poabsolutejcalc(5 - (var(--=d.createElem`t("div"O(XV^1/#
for(m=Math,p=#PI,r=#r_dom,Ssjs=^"<sup>"+a+"</sup>ZblackZ.ovDflowhidd`jty=tyy0	KW8jK1jJize10	KlorwhitejKtextAlignc`tDjKbottom5	0,tOx=[]g=BW=g	ghsl("+i+"rad,8,8VgBtopy25vh)VBx12.5vw)VBtr_ 3s, top 3sjQxj$0OBbordDRadius5j);setIntDval(functiF(){for(N=~~(r((M?13:A.l`gth))g=C=Y1](-$null==C||isNaN(C)?3:C);Y0]},4e3OA=[["0j()=>0a|X|j^#aba)--aUsUsin-X"+2O^-2O^3O^3)],[3)+cbrtX)/)/a/1.6Xa/1.4fibFacci
sqrt(5((G)-(2/G)#2*a*#PI)][(sqrt)t_(Ut_t
t_(a)sec
acsc
a1/1/a]],M=0,d.Fdblclick=()=>{M=!M,J=M?"italic":""};';G=/[
-^-`U-WYZJKFG#$jQODB]/.exec(_);)with(_.split(G))_=join(shift());eval(_)

Zm9yKF89J2cuQmVyRCksT0JzZXRQcm9wRHR5KCItLVEiLGppT1F5aiRtLiMoMSsjc3FydCg1KUdvbkZ5LktLZkZ0U0pqYltTXVpBW05dW1l3aWR0aFcpalZYViNVZW5gYW5fYT0+XlhqXh9zaW4oHh8jHjMqYR09IhxzaXRpRhwbKSoaGiooMiphGWNvGDAlFyNwb3coYSwWdHlsZRUucxUsFGxlZnQTKS8yEnMoES5oZWlnaHQcMRB4W2ldDyJcXHUyMjFBWGojDi5iYWNrZ3JvdW5kHAx0LmlubkRIVE1MPQt2bWluagliLmFwcGBkQ2hpbGQoCF0sWyIHFjIpB1giKxEGLGk9LTQ7ND5pO2krPS4wMSkFLnBvG2Fic29sdXRlagQcY2FsYyg1FyAtICh2YXIoLS0DPWQuY3JlYXRlRWxlbWB0KCJkaXYiTwIoWFZeMS8jAWZvcihtPU1hdGgscD0jUEkscj0jcl9kb20sUxxzFWpzPV4iPHN1cD4iK2ErIjwvc3VwPloMYmxhY2taLm92RGZsb3ccaGlkZGBqdAJ5PXQUeQR5EDAJS1ccOBdqSxMcMRdqSml6ZRwxMAlLGGxvchx3aGl0ZWpLdGV4dEFsaWduHGNgdERqS2JvdHRvbRw1CQswLAh0T3g9W10FDwJnPQ8UQlc9ZxAJZwxoc2woIitpKyJyYWQsOBcsOBdWZwRCdG9wA3kaMjV2aClWQhMDeBoxMi41dncpVkJ0cl8bEyAzcywgdG9wIDNzalF4aiQwT0Jib3JkRFJhZGl1cxw1F2oIDyk7c2V0SW50RHZhbChmdW5jdGlGKCl7Zm9yKE49fn4ocigaKE0/MTM6QS5sYGd0aCkpBWc9DxRDPVkxXSgtJG51bGw9PUN8fGlzTmFOKEMpPzM6Qyk7C1kwXX0sNGUzT0E9W1siMGooKT0+MAcfYQd8WHxqXiNhYhFhKQctHy1hBxgRVRhzBx5Vc2luBy1YIisRMk9eLQYyT14GM09eFjMpXSxbETMpKw5jYnJ0Bx5YKS8dKS9hLzEuNgceWBodGmEvMS40B2ZpYkZhY2NpAXNxcnQoNRooKEcSGSktKDIvRykZGiMYETIqYSojUEkpEl1bKA5zcXJ0KQd0XyhVdF8HGHQBdF8oYSkHc2VjARgRYRIHY3NjAR5hEgcxLx8xL2FdXSxNPTAsZC5GZGJsY2xpY2s9KCk9PntNPSFNLEoVPU0/Iml0YWxpYyI6IiJ9Oyc7Rz0vWwEtH14tYFUtV1laSktGRyMkalFPREJdLy5leGVjKF8pOyl3aXRoKF8uc3BsaXQoRykpXz1qb2luKHNoaWZ0KCkpO2V2YWwoXyk=

m=Math;
p=m.PI;
r=m.random;
S='style';
s=i=>'<sup>'+i+'</sup>';
b[S].background='black';
b[S].overflow='hidden';
t=d.createElement('div');
y=t.style;
y.position = 'absolute';
y.height='10vmin';
y.width='80%';
y.left='10%';
y.fontSize = '10vmin';
y.color='white';
y.textAlign = 'center';
y.bottom='5vmin';
t.innerHTML=0;
b.appendChild(t);
x=[];
for(i=-4;i<4;i+=.01)
{
 x[i]=d.createElement('div');
 g=x[i].style;
 g.width=g.height='1vmin';
 //g.background='white';
 g.background='hsl('+i+'rad,80%,80%)';
 g.position='absolute';
 g.top = 'calc(50% - (var(--y)*25vh))';
 g.left = 'calc(50% - (var(--x)*12.5vw))';
 g.transition='left 3s, top 3s';
 g.setProperty('--x', i);
 g.setProperty('--y', 0);
 g.borderRadius='50%';
 b.appendChild(x[i]);
}
setInterval(function(){


    N=~~(r()*(M?13:F.length));
    for(i=-4;i<4;i+=.01)
    {
        g=x[i].style;
        j=F[N][1](-i);
        g.setProperty('--y', (j==undefined||isNaN(j))?3:j);
    }
    t.innerHTML =  F[N][0];
},4000);
F=[
    ['0',i=>0],
    ['X',i=>i],
    ['|X|',i=>m.abs(i)],
    ['-X',i=>-i],
    ['cos(X)',m.cos],
    ['sin(X)',m.sin],
    ['-X'+s(2),i=>-m.pow(i,2)],
    ['X'+s(2),i=>m.pow(i,2)],
    ['X'+s(3),i=>m.pow(i,3)],
    [s(3)+'√X',m.cbrt],
    ['sin(X)/X',i=>m.sin(i*3)/i/1.6],
    ['sin(X)*X',i=>m.sin(i*3)*i/1.4],
    ['fibonacci(X)',x=>((1/m.sqrt(5)) * ((((1 + m.sqrt(5)) / 2) ** (x*2)) - ((2 / (1 + m.sqrt(5))) ** (x*2)) * m.cos((x*2) * m.PI))) / 2]


    ['√X',m.sqrt],
    ['tan(X)',m.tan],
    ['cot(X)',i=>1/m.tan(i)],
    ['sec(X)',i=>1/m.cos(i)/2],
    ['csc(X)',i=>1/m.sin(i)/2],
    ['1/X',i=>1/i],


];
M=0;
d.ondblclick=e=>{M=!M;y.fontStyle=M?'italic':''};