Even and Odd Signals A signal is said to be an even signal if x(-t)=x(t)or x[-n]=x[n].Even signals are symmetric about the vertical axis, or time origin. A signal is said to be an odd signal if x(-t)=-x(t)or x[-n]=-x[n].Odd signals are antisymmetric about the time origin.Even and Odd Signals • A signal is said to be an even signal if x(-t)=x(t) or x[-n]=x[n]. Even signals are symmetric about the vertical axis, or time origin. • A signal is said to be an odd signal if x(-t)=-x(t) or x[-n]=-x[n]. Odd signals are antisymmetric about the time origin