How are Fourier Series and Fourier transform are related?

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Fourier series are used for periodic signals, while Fourier transforms apply to aperiodic signals. The relationship between the two is that the Fourier transform can be seen as a limit of the Fourier series as the period approaches infinity. This connection allows for the derivation of the Fourier transform from the Fourier series formula under certain conditions. Additionally, the mathematical foundations of both concepts share similarities, making them integral to signal processing. Understanding this relationship enhances the analysis of both periodic and aperiodic signals.
ramdas
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We know that Fourier series is used for periodic sinusoidal signals and Fourier transform is used for aperiodic sinusoidal signals.

But i want to know that
  1. Is there any relation present between Fourier Series and Fourier transform ?
  2. Also,Can we derive mathematical formula of Fourier transform for a aperiodic signal using Fourier series formula or vice versa ?
 
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