# Manuals/calci/PERSYMMETRIC

MATRIX("PERSYMMETRIC",order)

• is the size of the Persymmetric matrix.

## Description

• This function returns the persymmetric matrix of order 3.
• A symmetric matrix is a matrix whose values are symmetric in the northwest-to-southeast diagonal.
• If a symmetric matrix is rotated by 90°, it becomes a persymmetric matrix.
• Symmetric persymmetric matrices are sometimes called bisymmetric matrices.
• i.e., A persymmetric matrix is a square matrix which is symmetric in the northeast-to-southwest diagonal.
• The form for Persymmetric matrix of order 5x5 is:
• In Calci MATRIX("persymmetric") shows the matrix with the negative and positive integer values.
• MATRIX("persymmetric:boolean",5) gives the persymmetric matrix of order 5 with the values 0 and 1.

## Examples

• MATRIX("persymmetric",3)
 58 -16 48 -39 -1 -16 -49 -39 58
• MATRIX("persymmetric:integer",6)
 -53 62 -80 57 -58 12 24 76 86 -29 0 -58 -15 -67 -58 -66 -29 57 -49 41 26 -58 86 -80 -78 22 41 -67 76 62 19 -78 -49 -15 24 -53
• MATRIX("persymmetric:boolean",5)
 1 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 1 0 1 0 1 0 1 0 1

## Related Videos

Symmetric Matrices