Barry Cipra's user avatar
Barry Cipra's user avatar
Barry Cipra's user avatar
Barry Cipra
  • Member for 12 years, 10 months
  • Last seen more than 1 year ago
69 votes

How to write popular mathematics well?

33 votes
Accepted

Gaussian prime spirals

27 votes
Accepted

Is "Notices of the American Mathematical Society" available before 1995?

26 votes

What are some examples of ingenious, unexpected constructions?

23 votes
Accepted

History of the high-dimensional volume paradox

21 votes

Sums of Squares

21 votes

Non-enumerative proof that there are many derangements?

17 votes
Accepted

A "couple" of questions on Gauss's mathematical diary

17 votes
Accepted

Billiard dynamics under gravity

17 votes

How many sequences of rational squares are there, all of whose differences are also rational squares?

15 votes
Accepted

Sum of integers squared relatively prime to and less than n ???

14 votes

Fiction books about mathematicians?

14 votes

Show that this ratio of factorials is always an integer

14 votes

Boys and Girls Revisited

13 votes
Accepted

Proof of a theorem of Jean-Pierre Serre on geodesics of closed Riemannian manifolds

12 votes

Giving a math talk with no blackboard or projector

10 votes

Billiard dynamics under gravity

10 votes
Accepted

Anyone has Kushner's book "Introduction to stochastic control" 1971? I need a theorem from it

9 votes

If a unitsquare is partitioned into 101 triangles, is the area of one at least 1%?

9 votes

Movies about mathematics/mathematicians

9 votes

Which math paper maximizes the ratio (importance)/(length)?

8 votes
Accepted

Sums of three non-zero squares

8 votes

Sum of 'the first k' binomial coefficients for fixed $N$

8 votes

Path length of ball on tilted, perforated plane

8 votes
Accepted

A function that is defined everywhere but has unknown values

8 votes

Help with this system of Diophantine equations

8 votes
Accepted

Numerically computing $\int_0^1 \frac{1}{\sqrt{1-x^4}}dx$

7 votes

Review papers in mathematics

7 votes

3-coloring of specific planar graphs

7 votes

Mathematical computer desk