From: Dave Aronson <rubytalk2dave@...>
Date: 2011-10-11T20:02:23+09:00
Subject: Re: why does `a + f b` not parse?

On Tue, Oct 11, 2011 at 06:32, Wayne Brissette <waynefb@earthlink.net> wrote:

> You also have to surround your number in parentheses ().

That's the odd part.  Just saying "sqrt 5" works (assuming you've
included Math, else "Math.sqrt 5").  But tack "2 +" on the front, and
suddenly Ruby can't parse it any more, even though it has now *more*
of a clue that what's coming is a mathematical expression.

-Dave

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