function lin_interpol_Y2_60_90 input Real alpha_deg "Branching angle (in deg)"; input Real w_rel_bc "Velocity ratio branch/common"; input Real Q_rel_bc "Volume flow rate ratio branch/common"; input Real F_rel_cb "Area ratio common/branch"; input Real F_rel_cs "Area ratio common/straight"; input Real K_b[3] "Free term correction for zeta_cb"; input Real K_s[3] "Free term correction for zeta_cs"; input Real A; input Real B; output Real zeta_cb; output Real zeta_cs; end lin_interpol_Y2_60_90;