Returns broken diagonals of a magic square
Usage
diag.off(a, offset = 0, nw.se = TRUE)
Arguments
- a
Square matrix
- offset
vertical offset
- nw.se
Boolean variable with TRUE meaning trace diagonals
along the northwest-southeast direction (point [1,n]
to [n,1]).
Details
Useful when testing for panmagic squares. The first element is always
the unbroken one (ie [1,1] to [n,n] if nw.se is
TRUE and [1,n] to [n,1] if nw.se is
FALSE.
Author
Robin K. S. Hankin
Examples
diag.off(magic(10),nw.se=FALSE,offset=0)
#> [1] 43 44 46 48 50 52 54 53 58 57
diag.off(magic(10),nw.se=FALSE,offset=1)
#> [1] 34 41 39 45 23 49 27 56 31 60