I think there are a lot of adults out there who were never diagnosed with autism/Aspergers and are somewhere on the spectrum.Reading up on it could help adults greatly.They would then know that far from being alone and feeling like an alien, there are lots of people out there who feel the same.If you can understand yourself, it brings about acceptance, and will help families. There are also groups to join.
I used to be able to do algebra, but have forgotten it entirely now !