Coordinate names for relativity
Trivial function to set coordinate names to “t
”,
“x
”, “y
”, “z
”.
coordnames(...) flob(x)
... |
Further arguments, currently ignored |
x |
A matrix |
Function coordnames()
simply returns the character string
c("t","x","y","z")
. It may be overwritten.
Function flob()
sets the row and columnnames of a 4*4 matrix to coordnames()
.
If anyone can think of a better name than flob()
let me know.
Robin K. S. Hankin
coordnames() flob(diag(3)) flob(matrix(1,4,4)) ## You can change the names if you wish: coordnames <- function(x){letters[1:4]} flob(outer(1:4,1:4))
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