View source for Talk:Cochleoid

The picture by Nikita is nice. And still, as an alternative I propose a similar picture made by Asymptote. Much easier to modify... --[[User:Boris Tsirelson|Boris Tsirelson]] ([[User talk:Boris Tsirelson|talk]]) 20:54, 14 February 2013 (CET)

<asy>
size(220,220);

int kmax=40;

guide g;
for (int k=-kmax; k<=kmax; ++k) {
  real phi = 0.2*k*pi;
  real rho = 1; // just for k==0
  if (k!=0) {
    rho = sin(phi)/phi;
  }
  pair z=rho*expi(phi);
  g=g..z;
}
  
draw (g);

defaultpen(0.75);
draw ( (0,0)--(1.3,0), dotted, Arrow(SimpleHead,5) );
dot ( (1,0) );
label ( "$a$", (1,0), NE );

</asy>