Science Fair Project Encyclopedia
Causal system
A causal system is a system that depends only on the current and previous inputs. This property is referred to as causality. A system that gets values from the future is termed an anticausal system (also called an acausal system).
Classically, nature has been considered to be a causal system. Though causality is still thought to be found in nature, discoveries in modern physics have challenged the view that nature is strictly causal. For an in-depth discussion, see causality (physics).
Last updated: 10-14-2005 13:06:45
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details