network profile
| bio | website | victor.dyndns.org |
|---|---|---|
| location | California | |
| age | 28 | |
| visits | member for | 2 years, 10 months |
| seen | May 21 at 20:48 | |
| stats | profile views | 69 |
PhD student in EE (optics/physics/computational stuff). I mostly answer questions related to math, geometry, and numerics here.
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May 6 |
awarded | Caucus |
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Mar 12 |
comment |
Determining if a set of hexagons on a grid can tile the plane That is correct, only translations, and no rotations. Not only that, but the overall tiling should be periodic. |
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Mar 12 |
asked | Determining if a set of hexagons on a grid can tile the plane |
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Feb 2 |
awarded | Popular Question |
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Jul 28 |
awarded | Yearling |
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Jun 22 |
revised |
Find displacement of vertices of a prism (polyhedron) fixed computation of rotation and added example. |
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Jun 22 |
comment |
Find displacement of vertices of a prism (polyhedron) The centroids $q_c$ and $p_c$ are simply the averages of the set of points you're considering. So if you're using just 3 points, it's going to be the average of those three points, not the centroid of the prism itself. |
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Jun 21 |
comment |
Segmented area between circles @Henning Makholm: You are indeed correct; I made a number of mistakes. I have correct them now. |
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Jun 21 |
revised |
Segmented area between circles corrected mistakes |
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Jun 21 |
answered | Find displacement of vertices of a prism (polyhedron) |
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Jun 21 |
comment |
Segmented area between circles No. The plot clearly shows that it crosses over the area of $A_{12}$. Mathematica says this happens around $R=9.23574$. |
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Jun 21 |
comment |
Find displacement of vertices of a prism (polyhedron) Your blocks are 12-sided prisms? What shapes are the cross sections? Are the displacements associated just with the block itself, or is there a unique displacement for each vertex? |
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Jun 21 |
comment |
Segmented area between circles I should just like to add that numerically evaluating the areas is extremely simple as the sum of circular segments, and can even be done in a numerically robust way when the segments are thin slivers. For C code, see the function CircularSectorArea in this file |
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Jun 21 |
answered | Segmented area between circles |
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Mar 7 |
comment |
Maintaining the line with the 2D iterands This was cross posted at scicomp: [scicomp.stackexchange.com/questions/1558/… |
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Jan 30 |
revised |
Find $DF$ in a triangle $DEF$ explained why i won't be posting a solution |
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Jan 30 |
comment |
Find $DF$ in a triangle $DEF$ No. The scale of the triangle DEF is scaled by a factor u, whereas the radius of the big circle is 14 (absolutely). |
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Jan 26 |
revised |
Find $DF$ in a triangle $DEF$ fixed inner radius |
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Jan 26 |
answered | Find $DF$ in a triangle $DEF$ |
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Jan 19 |
answered | Computing a volume (area) of intersections |
