How do I calculate the sum of TStep1 and TSTep2?

If TStep = Step', where Step = -2:4:14, and TStep1=TStep(1), TStep2=TStep(2), then how do I calculate the sum of TStep1 and TSTep2?

[David Hill]

I guess I don't understand the question. The sum is:

TStep1+TStep2

[Athul Prakash]

TStep is a 5x1 column vector.

TStep1 = Tstep(1) = -2

TStep2 = TStep(2) = 2

you answer = TStep1 + TStep2 = 0

mYAnswer = TStep1 + TStep2;