`size * = b-a`是什么意思？

Question

I've found the following notation size *= b - a. I've inspected it with reflect but it seems that size is just a float64 (a,b are floats too)so my question is what is * for?I expected it to dereference a pointer (size) but it doesn't seem to be the case.

Answer 1

I don't know go, but isn't that just equal to a regular

size = size * (b-a)