heart              {
  reset=1960 type=formula 
  formulaname=Formula61 passes=1
  center-mag=0.0553783/1.37218/0.7249002/0.4289 params=0/0 float=y
  inside=bof61
  colors=000`8i<17>yw2zz0yw1<5>sg7qe9nd9<13>0LL<23>0Xh0Yi0Zi0_j0`k<6>2gq<1\
  0>dtz<5>PmnMklJjjGhhDgf<2>8c_<25>zwbwtb<8>SHS<4>eHXhGYjEY<4>v7W<24>yubyw\
  bxu`<8>peNocLncL<10>bVJ<6>9RC<4>4P73O62N51M40L3<12>xu2<11>000AAC<2>J3SM0\
  YN0_<5>W0mY0pZ2n_5l
  }

frm:Formula61 {; Giuseppe Zito
 z = pixel ,
c2 = real(p1)
if(real(p1)==0)
c2 = 0.681623
endif
d1 = -0.959452
d5 = -0.458745
d12 = -0.425805
d15 = -0.271625
  : 
 x = real(z), y = imag(z)
s0 = y
s0 = s0 /c2
newx = s0 
s0 = y
s0 = s0 /d1
s0 = s0 +y
s0 = s0 *y
s0 = s0 -d5
s0 = s0 -y
s0 = s0 +y
s1 =d12
s1 = s1 *x
s1 = s1 /x
s1 = s1 -d15
s0 = s0 *s1
s0 = s0 /x
newy = s0 
z = newx + flip(newy)
 newx < 4 && newx > -4 && newy < 4 && newy > -4 
}