From: jim Date: Thu, 5 Feb 2015 14:20:38 +0000 (-0500) Subject: add anchor for #variables X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=commitdiff_plain;h=61287ba954f811a7fa9deda5291144a1bb58519b;ds=sidebyside add anchor for #variables --- diff --git a/topics/week1.mdwn b/topics/week1.mdwn index 9473c331..f47cd857 100644 --- a/topics/week1.mdwn +++ b/topics/week1.mdwn @@ -70,6 +70,7 @@ will be just another way to write: You see that you can use parentheses in the standard way. By the way, `<=` means ≤ or "less than or equals to", and `>=` means ≥. Just in case you haven't seen them written this way before. + I've started throwing in some **variables**. We'll say variables are any expression that's written with an initial lower-case letter, then is followed by a sequence of zero or more upper- or lower-case letters, or numerals, or underscores (`_`). Then at the end you can optionally have a `?` or `!` or a sequence of `'`s, understood as "primes." Hence, all of these are legal variables: x