[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: local binding, too local...
From: |
tomas |
Subject: |
Re: local binding, too local... |
Date: |
Sat, 8 Dec 2018 22:59:16 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Sat, Dec 08, 2018 at 11:45:32PM +0900, Jean-Christophe Helary wrote:
> Thank you Tomas.
>
> So can you say that "binding" is like "creating" a variable ?
No (at least not in this Lisp context). It's more like associating
a name with a variable.
> While assigning is just putting a value in that variable ?
Kind of, yes. Reality is a bit more complex, though...
> I remember in my math classes, when we were using x and y, etc. we were
> binding x and y, right ? And then when we had values for x and y we were
> assigning values. Is that correct ?
In maths, binding means associating a value with a name, that's easy.
And there's no correspondence for assignment. You can substitute a
bound variable (say x is bound to 5) by for its value everywhere.
"Assigning 7 to x" wouldn't make much sense in maths, because it would
amount to assigning 7 to 5.
Cheers
-- tomás
signature.asc
Description: Digital signature
- local binding, too local..., Jean-Christophe Helary, 2018/12/07
- RE: local binding, too local..., Drew Adams, 2018/12/08
- Re: local binding, too local..., Yuri Khan, 2018/12/08
- Re: local binding, too local..., Jean-Christophe Helary, 2018/12/08
- Re: local binding, too local..., tomas, 2018/12/08
- Re: local binding, too local..., Jean-Christophe Helary, 2018/12/08
- Re: local binding, too local...,
tomas <=
- Re: local binding, too local..., Jean-Christophe Helary, 2018/12/08
- Re: local binding, too local..., tomas, 2018/12/09
- Re: local binding, too local..., Jean-Christophe Helary, 2018/12/09
Message not available