a=pan,b=pan,i=1,x=0.34679014,y=0.72680286
a=eks,b=pan,i=2,x=0.75867996,y=0.52215111
a=wye,b=wye,i=3,x=0.20460331,y=0.33831853
a=zee,b=pan,i=6,x=0.52712616,y=0.49322129
a=eks,b=zee,i=7,x=0.61178406,y=0.18788492
a=hat,b=wye,i=9,x=0.03144188,y=0.74955076
