Atom autocomplete package that solves math expressions.
Just type a math expression wrapped in parenthesis. Autocomplete will kick in with the solution.
This package uses math.js so it can handle many types of expressions (arithmetic, boolean operations, unit conversions, etc.).
Go into Atom's Settings/Preferences > Install > search for autocomplete-math
Or install via the command line:
apm install autocomplete-math
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.