Question

how do I write a sum when I want it to be in half increments (if that makes any sense)

Answer 1

n/2?

Answer 2

So I want to sum up a function of x at points between 1 and 3 usually I would write this right?\[\sum^{3}_{i=1}f(x_i^*)\] But what if I want to sum the function at intervals of 0.5. Would I write this? \[\sum_{i=1}^{6}f(x_{i/2}^*)\]

Answer 3

yeah sorry i meant i/2

Answer 4

looks right to me