As a Maya generalist I've only written expressions and a the occasional script. So if you're a non-programmer like me, what's the best place to start learning visual programming in Bifrost. I decided a simple expression would be a useful starting point as a way to recreate something I was familiar with in Maya but would also be useful as a tool to reuse in other scenes and use the strengths Bifrost offers. Hopefully this will get you interested in exploring some of the other nodes in Bifrost. There are lots of interesting nodes in Bifrost that are easy to access and use as outputs in Maya.
Here's a great Autodesk Knowledge Network article on using sin in expressions as well as links to other math nodes.