Re: impulse function

[Quentin Spencer]

brito.rn wrote:
> I will try to explain better.
>
> I need to plot a discrete-time signal which contains impulse responses. This 
> signal is a sequence of 26 (0 to
> 25) samples that each one contain an accumulator of m from 0 to 10. 
>
> The signal is represented by this sequence:
> x[n] = accum((m+1)*[impulse(n-2m)-impulse(n-2m-1)]), with n = 0:25 and m = 0:10;
>
> For exemple, if x[n] when n = 0, x[0] = 
> accu((m+1)*[impulse(0-2m)-impulse(0-2m-1)]) with m from 0 to 10.
>
> Octave has a function impulse(), but this function need a system data scruture 
> and I dont know how I can
> convert my sequence for this data type.
>   


I don't know what you mean here by the "accum" function, as there is not 
a function like that in octave. Are you looking for cumulative sum, like 
the function "cumsum"? Why not just list the sequence of values you're 
trying to get, and maybe it will be easier for someone to help.

Quentin