循環小数 (2026/4/30)

https://gyazo.com/07f69af7f90f207edf0fb2d0772c098e

code:processing

//#Processing recurring decimal

int a=1, b=1, w, i, j, x, y;

size(800, 800);

background(-1);

for (i=0; i<100; i++) {

x=80*(i%10);

y=80*(i/10);

fill(0);

text(a+"/"+b, x+5, y+15);

noFill();

square(x, y, 80);

beginShape();

for (j=0; j<100; j++) {

w=a/b;

vertex(x+40+30*sin(w*PI/5), y+45-30*cos(w*PI/5));

a=(a-b*w)*10;

if (a==0) {

fill(#FFFF00, 50);

square(x, y, 80);

break;

}

}

endShape();

a=1;

b++;

}