Cross {DescTools} | R Documentation |
Vector or cross product
Cross(x, y)
x |
numeric vector or matrix |
y |
numeric vector or matrix |
Computes the cross (or: vector) product of vectors in 3 dimensions. In case of matrices it takes the first dimension of length 3 and computes the cross product between corresponding columns or rows.
The more general cross product of n-1
vectors in n-dimensional
space is realized as CrossN
.
3-dim. vector if x
and <
are vectors, a matrix of
3-dim. vectors if x
and y
are matrices themselves.
Hans W. Borchers <hwborchers@googlemail.com>
Cross(c(1, 2, 3), c(4, 5, 6)) # -3 6 -3
# Triple product can be calculated as:
va <- c(1, 2, 3)
vb <- c(4, 3, 0)
vc <- c(5, 1, 1)
Dot(va, Cross(vb, vc))