due date source pages: problem numbers

127 AugSpace-time plot: first draft

25 SepThe roots of our place-value system7: 1-4

319 SepContinued fractions13-14: 1-12

424 SepLow-degree equations5: 1-4

53 OctCardano's formulas13-14: 1-4

617 OctProjective geometry4: 1-4

731 OctElliptic curves4: 1-3

814 NovAncient approximations10: 1-4

926 NovStørmer numbers7-8: 1-6

103 DecThe tractrix and the pendulum1-3: 1-2

1112 DecSpace-time plot: final version