Talk:Causal system

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Contents 1 Status of Article 2 Example Suggestion 3 Causal vs. Memory Systems? 4 Dependence on the output? 5 Mathematical DefinitionS

[edit] Status of Article

I happened to be studying for a Signals & Systems exam, and I noticed this article was a bit hard to understand. So, I went ahead and tried to make the first paragraph a bit clearer, but I don't have the time to make the mathematical notation clearer. I hope there is someone out there that can do that.

Nutshell: Someone with math notation skills, please clean this article up.

Good Luck, Pg8p 08:41, 14 December 2006 (UTC)

[edit] Example Suggestion

This article could do well with a basic example to illustrate the concept more clearly. A graph and a few equations would go a long way.

Good Luck, Pg8p 08:41, 14 December 2006 (UTC)

[edit] Causal vs. Memory Systems?

Is there any difference between causal and memory systems?

This information from System analysis... hope it helps

• Memoryless systems do not depend on any past input.
• Systems with memory do depend on past input.
• Causal systems do not depend on any future input.

Best,

Pg8p 08:41, 14 December 2006 (UTC)

[edit] Dependence on the output?

y(n)= y(n-1)+ x(n) seems also causal, nevertheless the definition does not include such a case. Can we make a solid statement on that? (My textbook could not clarify it either.) —Preceding unsigned comment added by Fonduesuisse (talk • contribs) 13:19, 11 October 2007 (UTC)

[edit] Mathematical DefinitionS

It should be explained, that in this paragraph two definitions of causality are shown. —Preceding unsigned comment added by 134.130.44.166 (talk) 18:08, 8 November 2007 (UTC)