extprod3d

<code>n</code>-by-3 matrix. Each row is one x-vector

<code>n</code>-by-3 matrix. Each row is one y-vector

Computes the external product $$ $$$$ \left(x_2 y_3 - x_3 y_2,\; x_3 y_1 - x_1
y_3,\; x_1 y_2 - x_2 y_1 \right) $$$$ $$ of the 3D vectors in x and y.

arith

math

array

Makes the qhull library (www.qhull.org)
available in R, in a similar manner as in Octave and MATLAB. Qhull
computes convex hulls, Delaunay triangulations, halfspace
intersections about a point, Voronoi diagrams, furthest-site
Delaunay triangulations, and furthest-site Voronoi diagrams. It
runs in 2-d, 3-d, 4-d, and higher dimensions. It implements the
Quickhull algorithm for computing the convex hull. Qhull does not
support constrained Delaunay triangulations, or mesh generation of
non-convex objects, but the package does include some R functions
that allow for this. Currently the package only gives access to
Delaunay triangulation and convex hull computation.

David Sterratt

geometry

Mesh Generation and Surface Tesselation

C. B. Barber

Kai Habel

Raoul Grasman

Robert B. Gramacy

Andreas Stahel

David C. Sterratt

extprod3d function

Compute external- or `cross'- product of 3D vectors. — extprod3d

Compute external- or `cross'- product of 3D vectors.

extprod3d: Compute external- or `cross'- product of 3D vectors.

Description

Usage

Arguments

Value