Gamma (𝛾) and Beta (β) brain waves whil… by 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.

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rodrigo.siqueira

remix of d/22574 by u/rodrigo.siqueira

function u(t) {

c.width=880
for(β=300;β--;c.style.filter='invert()')𝛾=(S(β)*(β-360))/C(β*β+t*3),x.lineTo(β*3,220*(K=.7+frame%2)+S(β/𝛾)*80*S(𝛾)/K)
x.stroke()

Apr 21 2021 2:59 PM UTC

}// 140/140

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Gamma (𝛾) and Beta (β) brain waves while composing a Dweet.

u/EliteDaMyth

you can save 2 chars by removing the brackets around the multiplication/division. for(c.width=880,β=300;β--;c.style.filter="invert()")𝛾=S(β)*(β-360)/C(β*β+3*t),x.lineTo(3*β,220*(K=.7+frame%2)+80*S(β/𝛾)*S(𝛾)/K);x.stroke()


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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