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Like you, sorting is something I haven't written any code for for donkeys years - not since I got started in Assembler and had no libraries. Now I use "prepared" code - which has the advantage that I know it works and if there is a problem it's my fault - I used it wrong! 
I don't think I have used much of what I learned in school past "O" level or less (for non-UKians or the young, I passed my first O level when when I was about 14, but 16 was more normal).
Almost nothing past the basics of the "formal learning" at Uni has been used for thirty or more years, but the "mind set" of coding that was started then is still very much in force and wouldn't have been learned at all without the "formal learning" that caused it and hasn't been used since.
Visual Basic isn't a skill, it's a disease.
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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Agreed. The most important thing you need to learn in school, and the one thing that you're certain to need in any non-burger flipping job, is how to learn. Once you've got that down your degree is just a white collar union card.
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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Triple Integrals. Remember spending hours learning and practicing those for tests in high school. Once I left high school, I've never ever had to use them.
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Calculus in general... No need for it. I leave the calculus to the quants (quantitative analysts)...
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Lucky boy. 
THESE PEOPLE REALLY BOTHER ME!! How can they know what you should do without knowing what you want done?!?!
-- C++ FQA Lite
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We learned a lot of mainframe stuff first year - never ever used it. In fact never saw a mainframe based system since then...
I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)
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I believe the modern term is 'cloud' ... 
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I think I've used most things I've learned with the exception of some weird stuff at University.
Perhaps what is more interesting is what I used to use daily, but can't remember any more. Unix, C++, COM, VBXs, segmented memory on 16bit etc. Best forgotten for the most part.
Regards,
Rob Philpott.
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By choice,SQL, Novell. By not using, Pascal, MS Debug, BASIC, AS400 command line. (There are probably even more that I can't remember I even used.
I don't use recursion by the reason that 8 and 16 bit microcontrollers have very limited memory so I just got comfortable with not having to use it.
It was broke, so I fixed it.
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I think I was in, or close to, being in the position of being able to draw the logic gates for an extremely basic microprocessor. We were certainly examined on the logic-circuitry various parts of these during my degree . In the EE & Assembly exam I drew out the diagram of an instruction decoder - guaranteed marks if you were prepared to learn it and could follow the logic through enough sort out where you'd gone wrong and/or check it.
Never used any of it again, pity as I found it interesting.
Alberto Brandolini: The amount of energy necessary to refute bullshit is an order of magnitude bigger than to produce it.
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Ada.
Will Rogers never met me.
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Deriving the Bloch wave bands and Brillouin zones for silicon from the underlying lattice group.
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You win. 
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
Those who seek perfection will only find imperfection
nils illegitimus carborundum
me, me, me
me, in pictures
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Wait, what? I think I would have won if I had GOTTEN the chance to put it to work in a lab, instead I plunged right in to the internet boom of 2000. It's still neat to have at least a fuzzy understanding of everything that goes on to make computers work down to an atomic level.
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mark merrens wrote: What did you learn and never get around to using or, in fact, ever need to use?
Algebra... and dealing with sane women.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
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You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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John Simmons / outlaw programmer wrote: dealing with sane women
There are SANE women??? Who knew!
(Sorry wifey, that was a joke)
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
Those who seek perfection will only find imperfection
nils illegitimus carborundum
me, me, me
me, in pictures
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It's a skill that I learned in case I needed it, but have never had the opportunity to use.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
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You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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All of us (at least I hope so) as kids know how to forgive quickly. The world would be a very different place if we didn't lose that skill.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Only a stupid person carries hatred.
Mind you, like most men, I just forget: most things are just not that important that you need to expend emotional energy over.
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
Those who seek perfection will only find imperfection
nils illegitimus carborundum
me, me, me
me, in pictures
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mark merrens wrote: Only a stupid person carries hatred.
That's a bit harsh. On one end of the spectrum, if some guy did unspeakable things to your daughter, you certainly would not be stupid to hold on to hate. Wrong yes, but stupid no.
There are only 10 types of people in the world, those who understand binary and those who don't.
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RyanDev wrote: That's a bit harsh.
Perhaps.
RyanDev wrote: you certainly would not be stupid to hold on to hate. Wrong yes, but stupid no.
I disagree: what does hate get you? Revenge, on the other hand...
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
Those who seek perfection will only find imperfection
nils illegitimus carborundum
me, me, me
me, in pictures
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Quote: if some guy did unspeakable things to your daughter
I wouldn't hold on to hate. I also wouldn't hold on to him after I dangled him out of a 20-story building window. Let go the hate!
- I would love to change the world, but they won’t give me the source code.
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Indeed.
There are only 10 types of people in the world, those who understand binary and those who don't.
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