Like said before it has nothing to do with language design.
That said, I like the idea of having Ω, √, etc. But I'm afraid that our keyboards/editors/terminals are still not good to type that kind of characters quickly. But maybe I could use R or Ω, K or KΩ, why not…
And yes I think you're right, I could infer that 10K + 200 is 10.2K, like 3V times 2 is 6V, etc
Thanks for pointing this one. I don't think java is the right tool for what I have in mind (because of the JVM overhead) but I'll definitely try Frink.