Back

Fourier and Laplace transform pairs

What you are seeing: the same function f(t)f(t) shown alongside its Fourier-magnitude-squared F(ω)2|F(\omega)|^2 and its Laplace transform F(s)F(s) on the real axis. Notice the Lorentzian shape of F2|F|^2 for an exponential decay, and the pole location in ss.

Figure 1. Time-domain function, Fourier power spectrum, Laplace transform.
parameter a / γ1.00
ω₀2.0
function

WHAT TO TRY

  • Vary each control and watch the rail readouts respond.
  • Compare the diagnostic plot against the live scene.