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| − | + | == CAUSAL SYSTEMS == | |
| + | ''def:'' A causal system is one that depends on either a present or past value of ''<math>t</math>''. Likewise, a non-causal system is one which depends on a future value of ''t.'' | ||
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| + | '''EXAMPLES''' | ||
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| + | CAUSAL SYS: x(t) = 2(t-6) + 2 | ||
| + | |||
| + | NON-CAUSAL SYS: x(t) = 8(t+20) + 3 | ||
Revision as of 12:30, 1 July 2009
CAUSAL SYSTEMS
def: A causal system is one that depends on either a present or past value of $ t $. Likewise, a non-causal system is one which depends on a future value of t.
EXAMPLES
CAUSAL SYS: x(t) = 2(t-6) + 2
NON-CAUSAL SYS: x(t) = 8(t+20) + 3
