Dweets awesomed by u/rodrigo.siqueira

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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NotGate

function u(t) {

c.width|=f=(X,Y,Z,d,o=d<7&&4)=>{for(x.fillRect(960+1e3*X/Z,1e3*Y/Z,5,5);o--;f(X+R*C(a=S(t)*2*o),Y+R,Z+R*S(a),d+1))R=o&&2**-d};f(0,0,2,1)

Jun 5 2019 6:21 PM UTC

}// 136/140

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u/joeytwiddle

Nice #d3 #sierpinski #fractal
u/13thptr

#tetrahedron

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rodrigo.siqueira

remix of d/14442 by u/rodrigo.siqueira

function u(t) {

v=(a,b,Φ,r)=>{for(i=~r;i++;x.fillStyle=R(r))x.fillRect(a-=S(Φ),b+=C(Φ),r/40,.3)
while(r>9){v(a,b,Φ+S(b)/5,r*=.8)}}
t<1.6&&v(945,540,t*4,112)

Jun 5 2019 5:57 PM UTC

}// 140/140

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Feather ornament #fractal

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭀿𢐮𫱮𪑮𬁵𭀽𧰽🡻𬰽𦀮𭡡𫁵𩐽𘠢𞱏👥𭡡𫀨𢐮𭡡𫁵𩐩𞱦𫱲𚁯𘁩𫠠𣰩𬰫👯𚱠🐤𮱏𦱯𧑽𧁮𨀻𦀮𭡡𫁵𩐽𬱽𞡣𛡯𭑴𩑲𢁔𣑌👠𾰼𪑮𬁵𭀠𪑤👉🢫🁴𩑸𭁡𬡥𨐠𪑤👘𘁲𫱷𬰽𜐸𘁣𫱬𬰽𝰵𘁤𪑳𨑢𫁥𩀠𬱴𮑬𩐽𨡯𬡤𩑲𞡳𫱬𪑤𞱯𭡥𬡦𫁯𭰺𬱣𬡯𫁬🡠`.replace(/u../g,'')))

Jun 5 2019 3:52 PM UTC

}// 137/140

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Dwitter Object Viewer ~ Type an object name in the input box to see it's guts. For example try c, x, stats, or window.stopper #tool

u/katkip

this is nice
u/katkip

localStorage is full now
u/Xen

good idea

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rodrigo.siqueira

remix of d/4665 by u/ben

function u(t) {

v=(a,b,Φ,r)=>{for(i=~r;i++;x.fillStyle=R(0,Φ*30))x.fillRect(a+=S(Φ),b-=C(Φ),r/30,1)
while(r>3)v(a,b,Φ+S(b)/4+.4,r*=.72)}
v(t*2e4,1450,t,490)

Jun 5 2019 3:02 PM UTC

}// 140/140

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Windy garden #fractal #tree

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rodrigo.siqueira

remix of d/14338 by u/rodrigo.siqueira

function u(t) {

v=(a,b,Φ,r)=>{for(i=0;i++<r;)x.fillRect(a-=S(Φ),b-=C(Φ),s=r/40,s)
r>2&&v(a,b,Φ+Math.random()-.5,r*=.82)}
t<4&&v(940,1e3,0,45*t)

Jun 3 2019 6:43 PM UTC

}// 127/140

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Growing root #organic #fractal #tree

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KilledByAPixel

remix of d/14396 by u/KilledByAPixel

function u(t) {

for(j=14;j--;)for(Z=i=125;i--;x.fillRect(i%16*Z*1.3+J,J+1.3*Z*(i>>4),Z,Z))q=S(S(i*i)*t*9)*19,J=9*j-Z+q,x.fillStyle=`hsl(210 80%${50-j*9-q}%`

Jun 3 2019 5:36 AM UTC

}// 140/140

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Blue Barrier

u/katkip

Looks like a Razer Keyboard
u/rodrigo.siqueira

#cube

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Tesseract

remix of d/8221 by u/Tesseract

function u(t) {

t||(p='m 912 400',d=a=0)
g=y=>y&3^1?~y&1:g(y/4)
x.lineWidth=3
a+=((d&1)-2)*g(d++/2)+1
x.stroke(new Path2D(p+=["h-9","v9","h9","v-9"][a&=3]))

Jun 1 2019 4:36 AM UTC

}// 140/140

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Space filling curve

u/Xen

love it

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rodrigo.siqueira

function u(t) {

v=(a,b,Φ,r)=>{for(i=0;i++<r;)x.fillRect(a-=S(Φ),b-=C(Φ),s=r/18,s)
r>9?v(a,b,Φ+.5,r*=.72)&v(a,b,Φ-.5,r):0}
if(t<2)v(S(t**7)*3e3,1e3,0,72*t*t)

May 31 2019 3:04 PM UTC

}// 140/140

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Autumn forest #tree #recursive #fractal #organic

u/13thptr

nice
u/katkip

Awesome!!
u/SMON

Φ <3
u/aleamb

amazing!

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pavel

remix of d/14305 by u/robbyg

function u(t) {

r=(t&&2+r)**.5;throw p=t?2*p/r:2

May 31 2019 3:19 AM UTC

}// 32/140

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Calculating #pi based on Viète's formula

u/pavel

Converges pretty quickly

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rodrigo.siqueira

function u(t) {

D=(a,b)=>{L=a.length,i=r=0,R='';while(i<53){d=i<L?~~(a[i]):0,R+=(i==L?".":"")+~~((K=d+(r*10))/b),r=K%b,i++}throw(a+"/"+b+"="+R)};D("1",9998)

May 30 2019 5:23 PM UTC

}// 140/140

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BigFloat in 140 chars! This is the Long Division Algorithm used here to calculate 1/9998. Note that this simple division results in Powers of Two: 0001, 0002, 0004, 0008, 0016, 0032, 0064.... Try to change 9998 for 9997 and you will see Powers of Three (1, 3, 9, 27, 81...). Guess what 9996 does? D is the division function. (a,b) are (numerator, denominator). 53 is precision (number of digits). Add more "9" to fit larger power numbers. E.g. To see powers up to 2**40 (that is 1099511627776), change denominator from 9998 to 9999999999998 and total number of digits from 53 to 534.

u/rodrigo.siqueira

I have discovered a truly remarkable demonstration of this result, but this comment is too small to contain.
u/joeytwiddle

#math #division
u/marc8

quoting Fermat... LOL

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