Andy Leighton  writes:
> The Natural Philosopher  wrote:
>> On 30/04/18 20:57, Andy Leighton wrote:
>>> How does Prolog? Erlang? Haskell?
>>
>> Even worse....?
>>
>> Probably why they have never been used for anything important that I can
>> think of...

In general just because someone doesn’t understand it doesn’t mean it
isn’t useful. I don’t understand VHDL but that doesn’t stop my
colleagues doing interesting things with FPGAs.

> Really?
>
> SQL is used extensively. Erlang was/is widely used in telephone exchanges
> and mobile networks. I will admit that Prolog and Haskell haven't got wide
> usage. But TBH many of the languages Gareth listed do not have wide
> usage these days.

The Haskell wiki has a big list of applications - it turns up in
finance, compilers, biotech, telecommunications, security, IC modelling,
virtualization, games, ...

https://en.wikipedia.org/wiki/Watson_(computer) is a famous application
of Prolog. Lately I’ve been looking into a DSL which is essentially a
Prolog subset for a particular application we have in mind.

--
https://www.greenend.org.uk/rjk/

--- SoupGate-Win32 v1.05