topic "Involutory Matrix" in SAS/IML Software and Matrix Computations

"Involutory Matrix"

kiyeo — Mon, 22 Feb 2021 17:26:03 GMT

Re: "Involutory Matrix"

Rick_SAS — Tue, 23 Feb 2021 15:05:30 GMT

Please read this thread

https://communities.sas.com/t5/SAS-IML-Software-and-Matrix/Skew-Symmetric-Matrices/m-p/720432

about how to ask homework-type questions.

Re: "Involutory Matrix"

kiyeo — Tue, 23 Feb 2021 15:34:47 GMT

Dear, thank you in advance. But you recommend me is about skew-symmetric matrix what I need is to create an Involutory Matrix.

Re: "Involutory Matrix"

Rick_SAS — Tue, 23 Feb 2021 16:23:40 GMT

Here is what I wanted you to read:

when you ask for help you need to show what you've tried so far. Explain what you know and what you are confused about. Post some PROC IML code that indicates how you are attempting to solve the problem.

Re: "Involutory Matrix"

Ksharp — Fri, 26 Feb 2021 13:51:20 GMT

proc iml;
A = hadamard(4)/2;
I=A**2;
print A,I;
quit;

Re: "Involutory Matrix"

Rick_SAS — Mon, 15 Mar 2021 13:26:51 GMT

If your question is answered, please mark an answer as "Accepted" and mark the question as "Resolved." Otherwise, please let us know what additional information you need.