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brianmearns
  • Member for 12 years, 1 month
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21 votes
8 answers
8k views

Mental estimate for tangent of an angle (from $0$ to $90$ degrees)

9 votes
2 answers
10k views

How to denote domain and range

8 votes
2 answers
1k views

Understanding group presentation as a quotient

7 votes
1 answer
467 views

Can uncountable be defined as unable to be generated by any algorithm

5 votes
2 answers
9k views

Show that group action is homomorphism to Symmetric group

4 votes
1 answer
1k views

Brain teaser solution in Graph Theory / Ramsey Theory

3 votes
1 answer
272 views

Constructor theory distinguishability

3 votes
2 answers
2k views

Cosine of average of angles

2 votes
3 answers
1k views

Simple test if point is above or below sine curve

2 votes
0 answers
1k views

How to denote a random variable and the set of possible values

2 votes
1 answer
108 views

Enumerating cases for conditional probability

2 votes
1 answer
1k views

Notation for nested sigmas (summations)

2 votes
1 answer
151 views

Is any space-filling curve a pairing function?

1 vote
2 answers
1k views

successive approximation for sine, using pencil and paper

0 votes
1 answer
2k views

Detect "cusp" in parametric curve

0 votes
1 answer
44 views

Name for the sense of how many items are present

0 votes
1 answer
749 views

Big-O complexity of iterating over every substring