Unfamiliar Vector Index Notation

I recently encountered code that addresses a vector as V(a:b:c). Not sure what this does. I am used to V(a:b).

Answer 1

[Andrew Newell]

See Matrix Indexing in MATLAB.

[Dave Mackidd]

Thanks to Andrew and Azzi. Very helpful.

Dave

Answer 2

[Azzi Abdelmalek]

Example

V=[1 10 20 5 30 45]
V(1:2:5)

Check the result