#FIG 2.0 80 2 2 1 0 2 -1 0 0 0 0.000 1 0 0 0 2.000 8.000 16.000 679 479 739 479 9999 9999 2 1 0 2 -1 0 0 0 0.000 0 0 339 479 544 479 9999 9999 2 1 0 2 -1 0 0 0 0.000 1 0 0 0 2.000 8.000 16.000 309 489 214 589 9999 9999 2 1 0 2 -1 0 0 0 0.000 1 0 0 0 2.000 8.000 16.000 314 409 314 214 9999 9999 2 1 0 2 -1 0 0 0 0.000 1 0 0 0 2.000 8.000 16.000 179 379 239 424 9999 9999 2 1 0 2 -1 0 0 0 0.000 1 0 0 0 2.000 8.000 16.000 559 574 524 499 9999 9999 2 1 0 2 -1 0 0 0 0.000 1 0 0 0 2.000 8.000 16.000 449 214 479 309 9999 9999 2 1 0 1 -1 0 0 0 0.000 0 0 379 394 379 514 399 479 9999 9999 2 1 0 3 -1 0 0 0 0.000 0 0 219 439 739 294 9999 9999 2 1 0 2 -1 0 0 0 0.000 0 0 679 514 299 514 9999 9999 2 1 0 2 -1 0 0 0 0.000 0 0 679 459 679 514 9999 9999 2 1 0 2 -1 0 0 0 0.000 0 0 299 419 299 259 679 259 679 419 9999 9999 2 1 0 2 -1 0 0 0 0.000 0 0 299 514 299 494 9999 9999 3 0 1 3 -1 0 0 0 8.000 0 0 304 419 404 389 469 394 529 399 589 414 679 429 9999 9999 3 0 0 1 -1 0 0 0 0.000 0 0 369 339 434 329 494 334 549 359 614 379 674 409 699 424 9999 9999 3 0 0 1 -1 0 0 0 0.000 0 0 274 459 364 424 434 419 519 434 584 449 679 484 9999 9999 3 0 0 1 -1 0 0 0 0.000 0 0 719 354 659 419 634 489 644 504 9999 9999 3 0 0 1 -1 0 0 0 0.000 0 0 654 344 584 404 579 449 579 484 9999 9999 3 0 0 1 -1 0 0 0 0.000 0 0 574 314 529 394 504 469 9999 9999 3 0 0 1 -1 0 0 0 0.000 0 0 509 289 479 384 424 434 409 459 9999 9999 3 0 0 1 -1 0 0 0 0.000 0 0 439 289 419 384 349 434 329 484 9999 9999 3 0 0 2 -1 0 0 0 0.000 0 0 749 359 684 434 669 509 9999 9999 3 0 0 2 -1 0 0 0 0.000 0 0 379 299 509 279 609 334 749 359 9999 9999 3 0 0 2 -1 0 0 0 0.000 0 0 239 524 364 464 484 459 669 509 9999 9999 3 0 0 2 -1 0 0 0 0.000 0 0 379 299 359 379 289 429 239 524 9999 9999 4 0 0 24 0 -1 0 0.000 1 22 146 104 344 slope fy(x0,y0) 4 0 0 24 0 -1 0 0.000 1 22 89 454 199 z = f(x,y) 4 0 0 28 0 -1 0 0.000 1 22 134 439 594 x = x0 plane 4 0 0 34 0 -1 0 0.000 1 22 23 404 499 y0 4 0 0 34 0 -1 0 0.000 1 17 25 299 549 x0 4 0 0 34 0 -1 0 0.000 1 12 10 274 239 z 4 0 0 34 0 -1 0 0.000 1 17 11 714 504 y 4 0 0 34 0 -1 0 0.000 1 12 13 229 599 x