Why the comma? Why not substract a 3 or even: (- a 3) | Hacker News

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dorfsmay on Feb 13, 2016 | parent | context | favorite | on: Mu: making programs easier to understand in the la...

Why the comma? Why not

    substract a 3

or even:

    (- a 3)

akkartik on Feb 13, 2016 [–]

The comma is optional.

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