Re: [OctDev] Bchenco - Communication Toolbox

[David B. <Dav...@mo...>]

marco maso wrote:
> Hi, last month i had a doubt about Bchenco and thanks to your help 
> i've managed to solve my problems...but now i have again that silly 
> last question:
>
> In & out parameters in octave function are always LSB on the left?
> I mean, referring to bchenco fro example:
>
> bchenco([1 0 1 1],7,4)
>
> 1 0 1 1 = 11    or   1 0 1 1 = 13
>
> i thought that since bchpoly gives a polynomial with the LSB on the 
> left all the other functions would work coherently...am i wrong?
>
> Thanks
>
> Marco
>
All of this is documented.. Type "doc comms" at the prompt to get the on 
line version of the manual or look at it online at

http://octave.sourceforge.net/comm/local/comms_4.html#SEC13

In short

octave:2> bchpoly(14,6)
ans =

1 0 0 0 1 0 1 1 1

which is

1 + x ^ 4 + x ^ 6 + x ^ 7 + x ^ 8

so yes it is LSB first. So the above case "1 0 1 1" = 13. The functions 
are suppose to be coherent in their definitions, if they aren't then 
please give an example of the incoherence..

Regards
David



D.


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David Bateman                                Dav...@mo...
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