The difference between Fourier Series, Fourier Transform and Laplace Transform

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SUMMARY

The discussion clarifies the distinctions between Fourier Series, Fourier Transform, and Laplace Transform. The Laplace Transform is defined for functions from 0 to infinity, represented by the integral of f(x)e^(-xt) for t ≥ 0. The Fourier Transform applies to functions defined from negative to positive infinity, using the integral of f(x)e^(-itx) for all real t. The Complex Fourier Series is defined on a finite interval, with coefficients calculated using the integral of f(x)e^(-2πinx), while the Real Fourier Series employs sine and cosine functions instead of the exponential function.

PREREQUISITES
  • Understanding of integral calculus
  • Familiarity with complex numbers
  • Knowledge of function definitions over specified intervals
  • Basic concepts of signal processing
NEXT STEPS
  • Study the properties and applications of the Laplace Transform
  • Explore the Fourier Transform in the context of signal analysis
  • Learn about the derivation and applications of Complex Fourier Series
  • Investigate the differences between Real Fourier Series and Complex Fourier Series
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mathman
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Mathematically, these are three distinct, although related beasts.
Laplace transform (function f(x) defined from 0 to inf) integral of f(x)e-xt, defined for t>=0.
Fourier transform (function f(x) defined from -inf to inf) integral of f(x)e-itx defined for all real t.
Complex Fourier series (function f(x) defined on finite interval - simplify by making it (0,1)) Coeficients (cn) are given by integral of f(x)e-2(pi)inx, where n ranges over all integers. The series terms are cne2(pi)nx
Real Fourier series use sin and cos instead of exp function.
 
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can someone help me to explain the difference between Fourier Series, Fourier Transform and Laplace Transform

-thanx
 

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