/966 Let the wordlength of the output be W-bits,then the round-off error e(n)can be given by 2W-2 sgn 2-(m-1) 2-(m-1) W-1 W-1 se(n) (11.6) 2 2 2 22m1 2-(m-1) The error is assumed to be uniformly distributed over the interval in (11.6),the corresponding probability distribution is shown below,where A is the length of the interval,i.e.,A=2-(W-1) Pe() 片 2021年2月 102021年2月 10  Let the wordlength of the output be W-bits, then the round-off error e(n) can be given by  The error is assumed to be uniformly distributed over the interval in (11.6), the corresponding probability distribution is shown below, where Δ is the length of the interval, i.e., Δ=2-(W-1) sgn 2W-2 W-1 W-1