🚀 go-pugleaf

On Sun, 25 Feb 2018 15:30:39 +0000, Andrew Swallow
<am.sw...@btinternet.com> wrote:

>On 24/02/2018 14:35, JimP wrote:
>> On 24 Feb 2018 08:29:08 GMT, Jorgen Grahn <grahn...@snipabacken.se>
>> wrote:
>> 
>>> On Sat, 2018-02-24, Charlie Gibbs wrote:
>>>> On 2018-02-23, hanc...@bbs.cpcn.com <hanc...@bbs.cpcn.com> wrote:
>>>>
>>>>> Personally, I think all programmers, whatever their specialty,
>>>>> should have a solid background in algebra.  IMHO, if someone
>>>>> is weak in algebra, they'll be a weak programmer.
>>>
>>> That's the stance my university took, around 1990.  You didn't get to
>>> do computer science until after some hefty maths courses (where most
>>> of the students dropped off).
>>>
>>>> Better still, a solid background in logic.
>>>
>>> I think of it as having a talent for working within systems of rules.
>>> Maths is a good way to exercise that talent.  I suppose board games
>>> are too, but I'm a lousy player.
>>>
>>> But I'm not sure ... nowadays I tend to think of programming as a
>>> craft.  I never used much of my formal training, and some of the best
>>> programmers I've worked with had none.
>>>
>>>> Any programmer worth his salt should know about De Morgan's theorem,
>>>> whether he knows its name or not.
>>>
>>> I had forgotten the name, but yes.
>>>
>>> /Jorgen
>> 
>> I looked it up... never used it in any programming class, and never
>> used it to repair a computer. I had to take a math minor so I probably
>> had it in algebra. Don't remember it from the calculus classes I took,
>> I have gladly forgotten my calculus.
>> 
>
>De Morgan's theorem is Boolean algebra. The ability to change
>
>IF age > max_age OR age < min_age THEN
>   CALL report_age_wrong
>ELSE
>   candidate_age = age
>ENDIF
>
>into
>
>IF age <= max_age AND age >= min_age THEN
>   candidate_age = age
>ELSE
>   CALL report_age_wrong
>ENDIF

I have used Boolean; however, the example I found was two circles A
and B and their overlap. Thats sets. I did one program dealing with
sets at junior college in Apple Fortran 1.0, but none in my university
work with VAX PASCAL on a DEC VAX 11/730.