magic: diag.off – R documentation

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diag.off

Extracts broken diagonals

Description

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(s)

Robin K. S. Hankin

Examples

diag.off(magic(10),nw.se=FALSE,offset=0)
diag.off(magic(10),nw.se=FALSE,offset=1)

magic

Create and Investigate Magic Squares

v1.5-9

GPL-2

Authors

Robin K. S. Hankin

Initial release

2018-09-14