Arithmetical Problems
1. Archimedes’ Problem Bovinum
2. The Weight Problem of Bachet de Méziriac
Bachet’s Problem: as few weights to weigh them all
3. Newton’s Problem of the Fields and Cows
Isaac Newton Puzzle: Grazing Cows
4. Berwick’s Problem of the Seven Sevens
5. Kirkman’s Schoolgirl Problem
6. The Bernoulli-Euler Problem of the Misaddressed Letters
7. Euler’s Problem of Polygon Division
Euler’s Polygon Division Problem
8. Lucas’ Problem of the Married Couples
9. Omar Khayyam’s Binomial Expansion
10. Cauchy’s Mean Theorem
11. Bernoulli’s Power Sum Problem
12. The Euler Number
13. Newton’s Exponential Series
14. Nicolaus Macerator’s Logarithmic Series
15. Newton’s Sine and Cosine Series
16. André’s Derivation of the Secant and Tangent Series
17. Gregory’s Arc Tangent Series
18. Buffon’s Needle Problem
19. The Fermat-Euler Prime Number Theorem
Fermat’s theorem on sums of two squares
20. The Fermat Equation
21. The Fermat-Gauss Impossibility Theorem
Proof of Fermat’s Last Theorem for specific exponents
22. The Quadratic Reciprocity Law
Proofs of quadratic reciprocity
23. Gauss’ Fundamental Theorem of Algebra
Fundamental theorem of algebra
24. Sturm’s Problem of the Number of Roots
25. Abel’s Impossibility Theorem
26. The Hermite-Lindemann Transcendence Theorem
Planimetric Problems
27. Euler’s Straight Line
28. The Feuerbach Circle
29. Castillon’s Problem
30. Malfatti’s Problem
31. Monge’s Problem
32. The Tangency Problem of Apollonius
33. Mascheroni’s Compass Problem
34. Steiner’s Straight-edge Problem
35. The Delian Cube-doubling Problem
36. Trisection of an Angle
37. The Regular Heptadecagon
38. Archimedes’ Determination of the Number Pi
39. Fuss’ Problem of the Chord-Tangent Quadrilateral
40. Annex to a Survey
41. Alhazen’s Billiard Problem
Problems Concerning Conic Sections And Cycloids
42. An Ellipse from Conjugate Radii
43. An Ellipse in a Parallelogram
44. A Parabola from Four Tangents
45. A Parabola from Four Points
46. A Hyperbola from Four Points
47. Van Schooten’s Locus Problem
48. Cardan’s Spur Wheel Problem
49. Newton’s Ellipse Problem
50. The Poncelet-Brianchon Hyperbola Problem
51. A Parabola as Envelope
52. The Astroid
53. Steiner’s Three-pointed Hypocycloid
54. The Most Nearly Circular Ellipse Circumscribing a Quadrilateral
55. The Curvature of Conic Sections
56. Archimedes’ Squaring of a Parabola
57. Squaring a Hyperbola
58. Rectification of a Parabola
59. Desargue’s Homology Theorem (Theorem of Homologous Triangles)
60. Steiner’s Double Element Construction
61. Pascal’s Hexagon Theorem
62. Brianchon’s Hexagram Theorem
63. Desargues’ Involution Theorem
64. A Conic Section from Five Elements
65. A Conic Section and a Straight Line
66. A Conic Section and a Point
Stereometric Problems
67. Steiner’s Division of Space by Planes
68. Euler’s Tetrahedron Problem
69. The Shortest Distance Between Skew Lines
70. The Sphere Circumscribing a Tetrahedron
71. The Five Regular Solids
72. The Square as an Image of a Quadrilateral
73. The Pohlke-Schwartz Theorem
74. Gauss’ Fundamental Theorem of Axonometry
75. Hipparchus’ Stereographic Projection
76. The Mercator Projection
Nautical And Astronomical Problems
77. The Problem of the Loxodrome
78. Determining the Position of a Ship at Sea
79. Gauss’ Two-Altitude Problem
80. Gauss’ Three-Altitude Problem
81. The Kepler Equation
82. Star Setting
83. The Problem of the Sundial
84. The Shadow Curve
85. Solar and Lunar Eclipses
86. Sidereal and Synodic Revolution Periods
87. Progressive and Retrograde Motion of the Planets
88. Lambert’s Comet Problem
Extremes
89. Steiner’s Problem Concerning the Euler Number
90. Fagnano’s Altitude Base Point Problem
91. Fermat’s Problem for Torricelli
