Module 4 : Laplace and Z Transform
Lecture 30 : Laplace Transform
 
   Conclusion:
   In lecture you have learnt:

is called the Laplace Transform of h(t) and the Region of Convergence (ROC) of the Laplace transform is essentially determined by the real part of the complex number 's'  denoted as Re(s).
Two different functions may have the same Laplace Transform so the only way to uniquely describe them is by the means of ROC.
The ROC  consists of strips parallel to the -axis, it does not include poles and is always simply-connected.
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