Recent content by fanxilong

yes, you are right , it should be like this: x(t)=0 for t<0 x(t)=exp(-t/a)*sin(b*t) for t>=0 and then ?

hi every one! i want to know the Fourier transform of x(t) x(t)=exp(-t/a)*sin(a*t), where a ,b is constant and can it be work out by matlab? another question is : how to proof the Fourier transform of x(t) who follows normal distribution n(u, sigm^2 ) is also normal...