Discrete-Time Signals Time-Domain Representation Discrete-time signal may also be written as a sequence of numbers inside braces {xrn]}={…,-0.2,2.2,1.0.2,-3.7,2.9,… In the above, x1=-0.2,x0]=2.2,x1=1.1 etc The arrow is placed under the sample at time index n=0 Copyright C 2001, S.K. Mitra2 Copyright © 2001, S. K. Mitra Discrete-Time Signals: Time-Domain Representation • Discrete-time signal may also be written as a sequence of numbers inside braces: • In the above, etc. • The arrow is placed under the sample at time index n = 0 { [ ]} ={,− 0.2,2.2,1.1,0.2,−3.7,2.9,}  x n x[−1] = −0.2, x[0] = 2.2, x[1] =1.1