Find row with unequal distance

Hey,

i have a array(vector) like this:

A=[2,4,7,9,12,14]

Between 4 and 7, and also between 9 and 12 are bigger distances (=3) as between the other entries (distance=2).

I want to determine the row number of the first entry with bigger distance to the previous entry.

So in my example its entry 7 and therefor it should output me 3 (the row number of 7).

Any idea how to determine this?

Thank you!

Answer 1

[Torsten]

idx = find(diff(diff(A)) > 0,1,'first');
A(idx+2)

[Christopher Schoß]

Thank you for your answer!

Unfortunatly not successful for now:

[Torsten]

If you want the row, take idx+2 as result instead of A(idx+2).