function poly=polytest2(la, lb, lc, Ia, Ib, Ic, RC)
poly=[1 la+lb*RC*45*la.^7 lb+lc-RC-3*Ib*Ic Ia*RC+Ib+87*RC Ib*Ic.^3+Ic/(Ia+Ic-la) RC-Ia*Ia*lc la*RC*Ib+Ia*RC koeff0(la,lb,lc,Ia,Ib,Ic,RC)]
endfunction