From:  Johann 'Myrkraverk' Oskarsson <johann@2ndquadrant.com> 
Newsgroups:  comp.compilers 
Date:  Thu, 07 Jun 2012 18:15:58 +0000 
Organization:  A noiseless patient Spider 
References:  1203019 1203026 1203029 
Keywords:  design, comment 
Hans Aberg <habergnews@telia.com> writes:
> On 2012/03/12 06:49, glen herrmannsfeldt wrote:
>
>> As I understand it, Fortran introduced the multicharacter variable
>> name, pretty much universal in programming languages, but
>> mathematicians haven't caught on yet.
Mathematicians have an implied operator between symbols. You can't do
that with multi character names. Not in a way that can make sense, to
me.
Operator overloading, if done incorrectly, is a maintenance nightmare so
I don't think there will ever be a language with user defined implied
operators.
%let * be the implied operator
Then one could write
K = a b + c^2 a k;
which would mean
K = a * b + c^2 * a * k;
where ^ is "to the power of" and +, * the usual mathematical operators.
And while I find it easier to read the former, I doubt it'll be
universally recieved since slightly later in the program one might
encounter
%let ^ be the implied operator
L = c 2;
and L is suddenly c squared.
Maybe I'll try a toy language with implied operators one day.

Johann Oskarsson http://www.2ndquadrant.com/ []
PostgreSQL Development, 24x7 Support, Training and Services +

Blog: http://my.opera.com/myrkraverk/blog/
[It's been done. Probably before you were born. John]
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