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geometrian
  • Member for 11 years, 8 months
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18 votes
3 answers
2k views

How was the 506-digit prime number 999...9998999...999 found?

17 votes
1 answer
6k views

When is Quotient Map a Covering Map

8 votes
1 answer
11k views

Isolated Versus Non-Isolated Fixed Point, 2D Dynamics

5 votes
1 answer
174 views

Find Functions That Can Be Inverted from Their Sums

4 votes
2 answers
729 views

Quick Julia/Mandelbrot Testing

3 votes
1 answer
163 views

Smallest Number of Sets of Independent Edges in Sparse Graph

2 votes
3 answers
3k views

Connectedness of Disjoint Union of Connected Sets

2 votes
1 answer
211 views

Intersection of Three Periodic Lines

1 vote
0 answers
191 views

Integration through a Rotated Square

1 vote
1 answer
136 views

Invert "Gravitational" Force Function or Solve an Intersection

1 vote
1 answer
194 views

Fit Quantized Piecewise Constant Function to Another Piecewise Constant Function

1 vote
0 answers
57 views

Generate Uniformly Random Points on a Transformed Sphere

1 vote
1 answer
202 views

Integrate $(cos(\theta)+D)^m$ (power of cosine plus constant)

1 vote
1 answer
132 views

Sampling on Axis-Aligned Spherical Quad

1 vote
1 answer
317 views

Modifying U=mxn SVD Algorithm to U=mxm Algorithm

1 vote
1 answer
157 views

Find Monte Carlo Variance When Expected Value is not Known

1 vote
0 answers
35 views

Integrate Two Dot-Product-Power Terms

1 vote
0 answers
31 views

Is There A Name For Matrices Formed By Appending Rows?

1 vote
1 answer
242 views

Intersection Problem: Correctly Generalizing Vector Function to $\mathbb{C}$ for Durand–Kerner?

1 vote
1 answer
198 views

Reasonably-Good Bounding Sphere of an Affine-Transformed Sphere

1 vote
0 answers
307 views

Division of Solid Angle When Subdividing Spherical Triangle

0 votes
0 answers
45 views

Simplify Modulus Argument

0 votes
1 answer
91 views

Evaluating series for $e^x$, but with a $\log$ thrown in

0 votes
0 answers
185 views

Spherical Sampling of Projected Disk

0 votes
1 answer
56 views

Random Points Have Constant Density. Estimate It From $n$ of Them Chosen By Proximity?

0 votes
1 answer
275 views

Analytic Intersection of Objects Located on a 3D Grid's Vertices

0 votes
1 answer
2k views

3D Delaunay Triangulation by 4D Paraboloids