Problems

Tasks may be completed in any order.
Already-solved problems are at the bottom of the table.

Categories:

Statistics Geometry Music Physics Puzzle

all tags

Id	Type	Title	Solved	Gravitas
1	Computing	Addition	12	1.00
2	Statistics	Mean, Median, and Mode	7	1.84
3	Statistics	Mean, Median, and Mode II	3	3.05
4	Computing	Addition II	3	3.05
5	Computing	Multiplication	2	3.55
6	Computing	Division	2	3.55
7	Computing	Compound Interest	2	3.55
8	Computing	Compound Interest II	1	4.25
9	Computing	Square Roots	2	3.55
10	Statistics	Standard Deviation	4	2.66
11	Statistics	Combinations and Permutations	2	3.55
12	Statistics	Permutations with Repeating Elements	2	3.55
13	Statistics	Control Limits	2	3.55
14	Geometry	Trapezoidal Rule	2	3.55
15	Statistics	The Bell Curve	1	4.25
16	Computing	Logarithms	2	3.55
17	Computing	Arbitrary Base Logarithms	2	3.55
18	Computing	Natural Logarithms	-	5.46
19	Computing	Trigonometric Functions	1	4.25
20	Geometry	Polar Coordinates	2	3.55
21	Geometry	Cylindrical Coordinates	2	3.55
22	Geometry	Spherical Coordinates	2	3.55
23	Geometry	Scalar Projection	2	3.55
24	Geometry	Parabolas	2	3.55
25	Geometry	Parabolic Osculating Circles	2	3.55
26	Geometry	Ellipses	1	4.25
27	Geometry	Henge Finder	1	4.25
28	Geometry	Metro Loops	1	4.25
29	Geometry	A Heron's Journey	2	3.55
30	Geometry	The Lake Voyage	1	4.25
31	Geometry	Ant Colonies	1	4.25
32	Geometry	Blocked View	1	4.25
33	Geometry	Flat Belts	1	4.25
34	Geometry	A Fence and Four Boulders	1	4.25
35	Geometry	Highway Access	1	4.25
36	Geometry	Beltways	1	4.25
37	Geometry	Bike Paths	1	4.25
38	Geometry	Maglev Loops	-	5.46
39	Geometry	Railway Access	-	5.46
40	Geometry	Casino City Highway Access	-	5.46
41	Geometry	Intersecting Circles of Common Radii	1	4.25
42	Geometry	Intersecting Circles of Different Radii	1	4.25
43	Geometry	3 Points on a Plane	1	4.25
44	Geometry	Intersecting Spheres of Common Radii	1	4.25
45	Geometry	Intersecting Spheres of Different Radii	1	4.25
46	Geometry	Methane Identification	2	3.55
47	Geometry	Methane Rotation	1	4.25
48	Geometry	Methane Normalization	-	5.46
49	Geometry	Tetrahedral Shadows	1	4.25
50	Geometry	Min and Max Regular Tetrahedral Shadows	1	4.25
51	Geometry	Min and Max Irregular Tetrahedral Shadows	-	5.46
52	Geometry	Caber Tossing in the Garden	-	5.46
53	Geometry	Coaxial Cable Bundling	1	4.25
54	Geometry	Off-Axis Cable Bundling	-	5.46
55	Geometry	Clock Triangles	1	4.25
56	Geometry	Clock Triangles II	-	5.46
57	Geometry	Clock Triangles III	-	5.46
58	Geometry	Pixel Circles	1	4.25
59	Music	Musical Notes and Intervals	1	4.25
60	Music	Scales and the Circle of Fifths	1	4.25
61	Music	Chords and Inversions	1	4.25
62	Music	Equal Temperament	1	4.25
63	Music	Pythagorean Tuning	1	4.25
64	Music	Fine Tuning	1	4.25
65	Music	Vibrating Strings	1	4.25
66	Physics	Freefall Time	1	4.25
67	Physics	Freefall Distance	1	4.25
68	Physics	Upward Toss	1	4.25
69	Physics	Projectile Motion	1	4.25
70	Physics	Drag Force	-	5.46
71	Physics	Terminal Velocity	1	4.25
72	Physics	Universal Gravitation	1	4.25
73	Physics	Elastic Collisions	1	4.25
74	Physics	Billiard Ball Collisions	1	4.25
75	Physics	Many Billiard Ball Collisions	-	5.46
76	Physics	Torque	1	4.25
77	Physics	Maximum Book Overhang	1	4.25
78	Physics	Maximum Encyclopedia Overhang	1	4.25
79	Physics	Heat Flow	1	4.25
80	Unlabeled	Heat Flow through Dissimilar Materials	1	4.25
81	Engineering	Differential Manometers	2	3.55
82	Engineering	Pressurized Fluid Flow	1	4.25
83	Calculus	Approximating Slope	1	4.25
84	Calculus	Polynomial Derivatives	1	4.25
85	Computing	24-Bit Bitmaps	1	4.25
86	Calculus	Product Rule and Trigonometric Derivatives	1	4.25
87	Computing	Binary Numbers	2	3.55
88	Computing	Hexadecimal Numbers	1	4.25
89	Computing	Arbitrary Bases	1	4.25
90	Computing	Binary Fractions	1	4.25
91	Computing	Arbitrary Base Fractions	-	5.46
92	Computing	Negative Bases	1	4.25
93	Computing	Arbitrary Base88	1	4.25
94	Instructional	Kaprekar's Constant	1	4.25
95	Puzzle	Kaprekar's Conflux	1	4.25
96	Instructional	Elo Ratings	1	4.25
97	Biology	Half-Life	1	4.25
98	Puzzle	Blood Type	1	4.25
99	Puzzle	Expected Number of Random Moves	1	4.25
100	Puzzle	Expected Number of Random Moves II	-	5.46
101	Puzzle	The Magic Orchard	1	4.25
102	Puzzle	Wormholes of Cygnus	1	4.25
103	Puzzle	The Deranged Goats	2	3.55
104	Puzzle	A Deranged Gamble	-	5.46
105	Puzzle	Everyday Problems	1	4.25
106	Puzzle	Four Cardboard Boxes	1	4.25
107	Puzzle	Order Reconstruction	1	4.25
108	Puzzle	Mabinogion Sheep	-	5.46
109	Puzzle	Gachapon Collector	1	4.25
110	Puzzle	Gachapon Collector II	1	4.25
111	Puzzle	Gachapon Collector III	-	5.46
112	Puzzle	Subdividing Farmplots	-	5.46
113	Puzzle	Circular Subdivisions	1	4.25
114	Puzzle	Desert Escape	2	3.55
115	Puzzle	Double or Add	1	4.25
116	Puzzle	Multiply or Add	1	4.25
117	Puzzle	Double or Add Possibilities	1	4.25
118	Puzzle	Multiply or Add Possibilities	-	5.46
119	Puzzle	Rhombic Tiling	1	4.25
120	Puzzle	Rhombic Tiling Fixing	-	5.46
121	Puzzle	Unique Birdwatching	1	4.25
122	Puzzle	Unique Birdwatching II	-	5.46
123	Puzzle	Quest for the Jewel	1	4.25
124	Puzzle	Quest for the Jewel II	-	5.46
125	Puzzle	Fully Hidden Buildings	1	4.25
126	Simulation	War	1	4.25
127	Simulation	Conway's Game of Life	1	4.25
128	Simulation	Conway's Hexagonal Game of Life	1	4.25
129	Simulation	Conway's 3D Game of Life	1	4.25
130	Simulation	Langton's Ants	1	4.25
131	Simulation	Paterson's Worms	-	5.46
132	Simulation	Recamán's Sequence	1	4.25
133	Logic	NAND	1	4.25
134	Logic	NOT	1	4.25
135	Logic	AND	1	4.25
136	Logic	OR	1	4.25
137	Logic	XOR	1	4.25
138	Logic	NOR and XNOR	1	4.25
139	Logic	MUX	1	4.25
140	Logic	DEMUX	1	4.25
141	Logic	4-Bit Width Logic	-	5.46
142	Logic	Half-Adder	-	5.46
143	Logic	Full-Adder	-	5.46
144	Logic	RCA_4B	-	5.46
145	Logic	SRFF	-	5.46
146	Logic	TFF	-	5.46
147	Logic	DFF	-	5.46
148	Logic	Pulse Counter	-	5.46