I'm not comparing it to a commercial product, I was linking a datasheet that describes how the output stage of a function generator is built. It takes a lot mor

I'm not comparing it to a commercial product, I was linking a datasheet that describes how the output stage of a function generator is built. It takes a lot more than "a couple simple components" to get 95% of the functionality. I think building your own function generator is a great hobbyist project, I just wanted to point out some not so obvious gotchas.