hodge: Hodge star operator
In wedge: The Exterior Calculus

Description Usage Arguments Value Author(s) See Also Examples

Given a k-form, return its Hodge dual

1	hodge(K, n=max(index(K)), g=rep(1,n), lose=TRUE)

`K`	Object of class `kform`
`n`	Dimensionality of space, defaulting the the largest element of the index
`g`	Diagonal of the metric tensor, defaulting to the standard metric
`lose`	Boolean, with default `TRUE` meaning to coerce to a scalar if appropriate

Returns a (n-k)-form

Robin K. S. Hankin

wedge

hodge(rform())

hodge(kform_general(4,2),g=c(-1,1,1,1))


## Some edge-cases:
hodge(zero(5),9)
hodge(volume(5))
hodge(volume(5),lose=TRUE)
hodge(scalar(7),n=9)