7 ms·

Math doesn't have vars, only vals

• mbrock 13y ago
  That's a rather strange assertion, if you mean "variables" and "values." Math distinguishes between variables and values. Variables have different values. Values can be bound to variables. Sometimes we do math with mostly variables and few values -- that's called algebra.
  • iopq 13y ago
    I mean Scala vars can be changed during the program, while Scala vals can't. val y = Console.readInt var x = y + 1 x = y + 2 //valid y = 5 //error, vals can't be changed in the same block