When you see a symbol you don't recognize, like 'σ', you can just paste it into google and it'll tell you. I personally don't see why greek letters are such a

When you see a symbol you don't recognize, like 'σ', you can just paste it into google and it'll tell you. I personally don't see why greek letters are such a big sticking point, there's only 24 of them, and unlike Greek children you don't have to learn them all in one go.