One day in a land far awaySome mathematicians at playFound a transform of convenient formThe basis of physics today. Convolving would wreck people's brainsStill the advent of Fourier domainsfor convolving in onemeans multiplicationin the corresponding domain. Got trouble with an ODE?Fourier transforms will set you freeWhen once you would cry,You now multiply,by a constant times the frequency. Fourier...