Perpendicular Possibilities
plotting - How do I draw lines perpendicular to contour lines on ListPlot3D? - Mathematica Stack Exchange
linear algebra - Finding point perpendicular to a line - Mathematica Stack Exchange
Adding Perpendicular Vectors - YouTube
plotting - Generating vectors with small inner products in a large vector space - Mathematica Stack Exchange
Normal Vector -- from Wolfram MathWorld
Perpendicular Vector -- from Wolfram MathWorld
MATHEMATICA tutorial, part 2.1: Vectors
Basis (linear algebra) - Wikipedia
Orthogonalize—Wolfram Language Documentation
Orthogonal Matrix - an overview | ScienceDirect Topics
UM Ma215 Examples: 13.2, 13.3 TNB Frames
How to Find a Vector That Is Perpendicular | Sciencing
linear algebra - Finding point perpendicular to a line - Mathematica Stack Exchange
Cross—Wolfram Language Documentation
Cross—Wolfram Language Documentation
MATHEMATICA tutorial, part 2.1: Vectors
Generating random vectors using Mathematica and an inequality - Mathematica Stack Exchange
linear algebra - How can I find the perpendicular to a 2D vector? - Game Development Stack Exchange
Cross—Wolfram Language Documentation
Perpendicular Vector -- from Wolfram MathWorld
Random perpendicular vector3 after rotation - Unity Answers
EXAMPLE: Finding unit vectors in 3D perpendicular to two other vectors - YouTube
Test for Perpendicular Vectors (3D) - Scalar Product : ExamSolutions Maths Revision - YouTube
