detecting a sign change in a vector

[dirac]

Hi there people,

This might be trivial but I am stuck on this.
I have a vector, V, which basically contains the values of a cos/sin
function. The signs of the elements in the vector change from + to -
occasionally. I would like to find these points without using a loop as I
have done in the past. Is there a way to do this?

Thanks
MA



-----
Still learning everyday.
--
View this message in context: 
http://octave.1599824.n4.nabble.com/detecting-a-sign-change-in-a-vector-tp4649327.html
Sent from the Octave - General mailing list archive at Nabble.com.