# Questions tagged [triangulation]

For questons about triangulation, that is a) the subdivision of the plane or other topological spaces into triangles (or, more generally, simplices) or b) the methods used in surveying for locating points by measuring angles and accessible lengths of triangles

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### Upper triangulation of a matrix versus diagonalization

I am trying to google this question, but could not find any hints. This is important to me because of I am dealing with 3-4D matrices. It's true that an upper triangulation (Gauss elimination) of a ...
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I have a right triangle like shown in the image: Right triangle I know the coordinates of $\mathbf V_1$ and $\mathbf V_3$, as well as the lengths of all sides $(A, B, C)$ and angles of the vertices $(... 0 votes 0 answers 15 views ### How does one calculate the tracks like the ones used in tracks vehicle? Please bear with me my English isn't good. I'm trying to make a simple Wall-E mechanism for some game. Please take a look at the simple drawing I made -> wall-e drawing Now, how can I find out the &... 0 votes 0 answers 35 views ### Simple triangulations of solid Cylinders For some explicit calculation I have to do, I have to choose a triangulation of a solid cylinder as a starting point (viewed as a$3$-dimensional manifold with boundary). Can anyone tell me if the ... 0 votes 1 answer 56 views ### How to calculate the 3D cartesian coordinate of the Apex of a non equilateral triangle-based pyramid? [closed] I was hoping someone could help provide a formula that can solve the (X,Y,Z) dimensions/coordinate for the Apex of the given pyramid? How can this be done using triangulation? I have modelled it in ... 1 vote 0 answers 37 views ### How to test if a partial triangle mesh is inside out? I want to categorize partial trimeshes (actually regions on trimeshes) based on whether they are inside out or outside out. (We can assume consistent orientation.) Above is an example of what I am ... 0 votes 0 answers 36 views ### On the quality of triangles in triangulations By indicating respectively with$\theta_{\min}$and$\theta_{\max}$the minimum angle and the maximum angle of a triangle, we have:$\$ \text{quality}(\theta_{\min},\,\theta_{\max}) := \max\left(\frac{\... 1 vote
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### Triangulation with 4 points

I have a square room and in each corner there is a microphone that pics up noises. I need to find the position in space of this sound by using the time the sound needs to reach each microphone. I know ...
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### How to choose the points to triangulate a domain

Choosing Mathematica to expose the problem, defined the points: ... 1 vote
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### What are all possibilities for how many triangles when a square is triangulated?

A square with 3 points on each side used as vertices for triangulation (in addition to the vertices of the square) and 20 points inside the square is triangulated. What are all the possibilities for ...
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### Is 9th grade geometry unique in the pythagorean theorem?

I've been taking Geometry and the year is ending. I have come to realize that it is centered around the Pythagorean theorem. Is it unique in this feature or will many classes be centered around this ...