Timeline for Why must the Region Of Convergence (ROC) contain infinity and the system function be a right-sided sequence for it to be causal?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Jan 16, 2019 at 6:38 | vote | accept | Hasan Shuvo | ||
| Oct 5, 2018 at 16:56 | comment | added | Matt L. | @HasanShuvo: Yes, if the sum converges, $H(z)$ has a finite value. If you look at Eq. (1) in my answer you see that a causal $h[n]$ vanishes for negative indices $n$, that's why there are no negative indices in the sum. | |
| Oct 5, 2018 at 16:36 | comment | added | Hasan Shuvo | 1/ H(z) converges means it have some finite value?.2/ why 0 To +inf is the limit?For causal system? | |
| Oct 4, 2018 at 19:46 | history | answered | Matt L. | CC BY-SA 4.0 |