Description Usage Arguments Details Value Note Author(s) Examples
Wedge products of k-forms
1 2 |
K1,K2,x,... |
k-forms |
Wedge product of k-forms.
Returns a k-form.
In general use, use wedge()
or %^%
. Function
wedge()
uses low-level helper function wedge2()
, which
takes only two arguments.
Robin K. S. Hankin
1 2 3 4 5 6 7 8 9 10 11 | k1 <- as.kform(cbind(1:5,2:6),1:5)
k2 <- as.kform(cbind(5:7,6:8,7:9),1:3)
k3 <- kform_general(1:6,2)
a1 <- wedge2(k1,wedge2(k2,k3))
a2 <- wedge2(wedge2(k1,k2),k3)
is.zero(a1-a2) # NB terms of a1, a2 in a different order!
# This is why wedge(k1,k2,k3) is well-defined. Can also use %^%:
k1 %^% k2 %^% k3
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