This is an easy one. A Hermitian matrix matches its conjugate transpose. Write a verb hft that creates a Hermitian matrix from a triangular one that has a real diagonal.
ishermitian =: -: +@|:
]A =: 2 2 $ 1 2j3 0 4
1 2j3
0 4
]B =: hft A
1 2j3
2j_3 4
ishermitian A
0
ishermitian B
1
Kip Murray
Sent from my iPad
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
