how to get first and last column of a matrix in MATLAB?

I have a matrix lets say:

a =
    401.4800  344.0900  305.0300  462.2100  310.0600  397.3400  502.5900
    547.7100  429.9600  540.3400  737.3600  491.4700  474.7400  735.8700

I want to get the first and l开发者_高级运维ast columns only so that:

b = 
    401.4800  502.5900
    547.7100  735.8700

---

b = a(:,[1,end])

This means: all rows (:), first and last column ([1,end]).