Following list of interesting examples for the bilateral Laplace transform can be deduced from the corresponding Fourier or unilateral Laplace transformations (see also ): See also Causal filter Acausal system Causal system Sinc filter – ideal sinc filter (aka rectangular filter) is acausal and has an infinite delay. References Van der Pol, Balthasar, and Bremmer, H., Operational Calculus Based on the Two-Sided Laplace Integral, Chelsea Pub. Co., 3rd ed., 1987. . Integral transforms Laplace transforms