wedge: Wedge products
In wedge: The Exterior Calculus

Description Usage Arguments Details Value Note Author(s) Examples

Wedge products of k-forms

1 2	wedge2(K1,K2) wedge(x, ...)

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

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