Polar coordinate system - Wikipedia
Generate a random direction within a cone - Mathematics Stack Exchange
Efficient generator of random fiber distribution with diverse volume fractions by random fiber removal - ScienceDirect
Numerical investigations on random close packings of cylindrical particles with different aspect ratios - ScienceDirect
Generation and Numerical Analysis of Random Aggregate Structures in Recycled Concrete Aggregate Systems | Journal of Materials in Civil Engineering | Vol 32, No 4
Radiative characterization of random fibrous media with long cylindrical fibers: Comparison of single- and multi-RTE approaches - ScienceDirect
Curvilinear coordinates - Wikipedia
Orientations
A new algorithm to generate representative volume elements of composites with cylindrical or spherical fillers - ScienceDirect
Generate a random direction within a cone - Mathematics Stack Exchange
Cylindrical coordinate system - Wikipedia
Unit vector - Wikipedia
Generate a random direction within a cone - Mathematics Stack Exchange
Rhino Grasshopper: Random Geometry Distribution - Horst Sondermann
Cylindrical Coordinates -- from Wolfram MathWorld
Analysis of orientation distribution in numerically generated random packings of Raschig rings in a cylindrical container - ScienceDirect
Definition of Velocity And Acceleration In Cylindrical Coordinates | Chegg.com
Generating uniformly distributed numbers on a sphere – Mathemathinking
Spherical coordinate system - Wikipedia
Cylindrical coordinates - Math Insight
Cylindrical coordinate system - Wikipedia
How to Generate Random Surfaces in COMSOL Multiphysics® | COMSOL Blog
Coordinate system - Wikipedia
Cylindrical coordinate system - Wikipedia
Cylindrical coordinates - Math Insight
