zlacker

>>rbanff+(OP)
The author used:

    sum := float32(0)

Over Go's zero-value default initialization e.g.

    var sum float32

A nit stylistically but wondering if there was a good reason to do so?

>>devjam+322
One advantage is that it makes the value explicit so anyone reading the code irregardless of their familiarity with Go will know it will be zero.