Figure 9

Here two data sets are being modeled by two corresponding finite-element calculations, both sharing common Young's moduli. In (a), the bad initial guess of 100 Pa for each Young's moduli is seen to converge to the values of Table 2. In (b), the two error functions are seen to be rapidly minimized by the least-squares optimization routine. One finite-element calculation corresponds to a force applied at midline (F _M ) and the other corresponds to a force applied at area pellucida (F _AP ). E ₁, E ₂, E ₃, and E ₄ correspond to the Young's moduli in the area opeca, area pellucida, intermediate region, and midline region, respectively.