Re: triangular wave

[Jaroslav Hajek]

On Tue, May 20, 2008 at 9:09 AM, javier <address@hidden> wrote:
> Sorry for my English
> Someone knows how to create a vector with a triangular wave?
> And a square wave?
>
> Something like this but with a signal triangular:
>
> seno=10*sin(2*pi*10);
>
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try
2/pi*asin(sin(2*pi*x))
or (equivalent but more accurate)
2*abs(2*((x-0.25) - floor(x-0.25))-1)-1

btw. this has little to do with octave in particular, unless you ask
for a function to be implemented.



-- 
RNDr. Jaroslav Hajek
computing expert
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz