1. The problem statement, all variables and given/known data Compute the Fourier transform of [itex]\phi(t)[/itex]=(e^(-at))H(t) where H(t) is the Heaviside step function 2. Relevant equations 3. The attempt at a solution I am stuck in an attempt at the solution, I am confused at how the heaviside step function factors in and think that it may just affect the upper and lower limits of the integral, but am not sure. I am looking for direction on how to approach the problem or at least set it up.