import base_pi;
size(8cm,0);

for (int i=-4; i<=4; ++i)
  {
    if(i != 0) {
      /*<asyxml><view file="../base_pi.asy" type="string" signature="texfrac(rational,string,bool,bool,bool,bool)"/></asyxml>*/
      label(texfrac(rational(1/i)), (i*cm,0));/*<asyxml><view file="../base_pi.asy" type="rational" signature="rational(real,real)"/></asyxml>*/
      label(texfrac(rational(1/i),signin=true), (i*cm,-cm));
    }
  }