geometry - Given a light source and a triangle in space, find area of the triangle's projection onto a plane - Mathematics Stack Exchange

geometry - Given a light source and a triangle in space, find area of the triangle's projection onto a plane - Mathematics Stack Exchange

Problem We have a light source in $L = (0, -2, 5)$, and we have a triangle $ABC$, given by the points $(0, 0, 2), \ (3, 0, 2), \ (0, 0, 3)$. We are also given that the point $C$ projects to $C' =

Shifting beams at normal incidence via controlling momentum-space geometric phases

Mathematics, Free Full-Text

Science analogies - Science-Education-Research

geometry - Determining if an arbitrary point lies inside a triangle defined by three points? - Mathematics Stack Exchange

geometry - Can one always map a given triangle into a triangle with chosen angles by means of a parallel projection? - Mathematics Stack Exchange

Problem Set 5.1

In hyperbolic space, you can draw a regular pentagon with five 90-degree angles. In what space can you draw a hexagon with six 90-degree angles? How do you find a space where you can draw an n-gon with n 90-degree angles? - Quora

reference request - Proofs without words - MathOverflow

The Geometric Viewpoint

graphics - Projection of triangles onto a sphere - Mathematica Stack Exchange

Revealing topology with transformation optics

Poincaré disk model - Wikipedia

Geometric descriptions for the polarization of nonparaxial light: a tutorial

graphics - Projection of triangles onto a sphere - Mathematica Stack Exchange