figure 170 146 1529 575
text 147 1680 815 1958
equation 201 818 814 929
caption 147 614 1552 674
text 175 942 816 1161
text 878 733 1554 1958
text 141 733 814 794
text 147 1515 815 1576
equation 250 1593 710 1662
equation 355 1411 632 1493
text 175 1360 678 1393
equation 209 1276 814 1343
equation 256 1177 814 1210
text 174 1224 456 1260