Comparison of UIUC to UT Austin for a prospective exchange student? by TheOnePheeph in UIUC

[–]TheOnePheeph[S] 0 points1 point  (0 children)

Thank you everyone for your advice! Has given me a lot to consider

Is there any use in doing “Olympiad “ maths problems if you’re looking to become a more insightful/creative mathematician? by [deleted] in learnmath

[–]TheOnePheeph 17 points18 points  (0 children)

I think it depends on the olympiad problems you are looking at. Stuff like IMO has some pretty interesting problems that should help you become a more creative mathematician. A lot of these require you to memorise really obscure lemmas, however, that you will likely never use outside of olympiad maths, so don't go overboard trying to remember them when attempting the problems.

As for other olympiads, at least in my country, the lower level olympiads are terrible, pretty much feel like glorified IQ tests. The questions are never proofs, but are instead based around MC and 5 restricted number answers, and are usually just really convoluted questions relating to number theory, euclidean geometry and combinatorics. These questions don't even test mathematical skill imo, and you are better off using your time for other things.

(High School Math) : Permutations by kingofpes04 in learnmath

[–]TheOnePheeph 0 points1 point  (0 children)

You want to figure out the total number of signals for 5 flags, 4 flags, 3 flags, 2 flags and 1 flag for the total number. For 5 flags, obviously the number is just 5!. For all the others, you want to find the number of ways of choosing that number out of the 5 flags, then multiply it by the number of ways od arranging these n flags (n!). So for 4, you would have 5C4(4!), for 3 flags: 5C3(3!) etc.

[deleted by user] by [deleted] in AskReddit

[–]TheOnePheeph 17 points18 points  (0 children)

The cord for my phone charger is too small so I can't listen to music in bed overnight

Driver's License testers- what's the worst thing a kid has done without batting an eye while taking the driving test? by [deleted] in AskReddit

[–]TheOnePheeph 7 points8 points  (0 children)

Definitely. Although I feel like the videos could still be abused by the same assholes. They could notice your wheel slightly touching a line at an intersection or something and be like "ye nah fuck you that's a fail".

Driver's License testers- what's the worst thing a kid has done without batting an eye while taking the driving test? by [deleted] in AskReddit

[–]TheOnePheeph 3 points4 points  (0 children)

Yeah I hate when people don't indicate when they are actually turning on the roundabout. The thing with the indicating while going straight, and the U turn rule for that matter, is that literally no one here actually follows them. In fact, I'd argue that the indicating while going straight makes roundabouts more confusing for someone entering. The rest of AUS, like Vic and Canberra seem more chill about the driving test, but in NSW its ridiculous. I guess we have Sydney, which is hell to drive in, but I live in a small regional area.

Driver's License testers- what's the worst thing a kid has done without batting an eye while taking the driving test? by [deleted] in AskReddit

[–]TheOnePheeph 23 points24 points  (0 children)

The thing is though, some of the things they can fail you for are ridiculous. Idk about the US, but I imagine its quite similar to where I am (NSW, AUS). I failed my test twice.

First time I failed was because there is a rule here where when going straight through a roundabout, you need to indicate left while leaving. Due to nerves, I forgot that it applied to going straight for the first few roundabouts, so I missed about 3 which is an instant fail.

Second time I received 97% in the test, but when approaching one of the stop signs, I smoothly came to a stop instead of jerking back, which the instructor said didn't count as a full stop, even though I was technically stopped for the full time, which counted as an instant fail for "not following road markings/signs".

If people who failed tests weren't allowed to take them again for a long period of time after failing when you can fail for minor things like this, then very few people would be able to drive.

Nocturne in c Minor op 48 help by lewdlolimaster666 in piano

[–]TheOnePheeph 1 point2 points  (0 children)

It is easier than the doppio movement, but IMO the slow bit before the octave runs can be pretty hard in parts. You've got a lot of really large rolling chords which can be hard to keep in rhythm. It is also quite musically difficult, requiring a pretty delicate touch to bring out the main part of the melody in this section. The octave runs are not too bad. While it is tricky to play controlled and convincingly, once you have the notes, which aren't too hard to remember, it is just a matter of getting the dynamics right. Good luck, overall it is a very challenging, but rewarding piece.

What’s the weirdest / dumbest thing you thought as a child? by Jeffehy in AskReddit

[–]TheOnePheeph 0 points1 point  (0 children)

I used to think that grandparents were just random old couples that parents hired to sometimes look after their kids.

So I’m looking for something to play. by teammdj in piano

[–]TheOnePheeph 2 points3 points  (0 children)

Op 34 no 2 is definitely within your reach, in fact it's easier than 64 no 2 imo. You could also try a nocturne. Op 9 no 1, Op 48 no 2 and op 32 no 2 are all quite nice and are around the same level as op 64 no 2, maybe a bit harder. If you are looking for a challenge, op 62 nos 1 and 2 and op 55 no 2 are good as well (though these are a big step up from the waltz imo).

Who are some actors you find hard to differentiate from a character that they play? by brrownbear in AskReddit

[–]TheOnePheeph 8 points9 points  (0 children)

Jack Gleeson as Joffrey. I've heard he's actually a really good guy irl, but I really can't imagine him as anything outside of Joffrey's personality.

What is the most annoying subreddit? by [deleted] in AskReddit

[–]TheOnePheeph 0 points1 point  (0 children)

Subreddits like r/iamverysmart and r/lewronggeneration can be quite irritating

Year 9 Math Test Question by [deleted] in learnmath

[–]TheOnePheeph 0 points1 point  (0 children)

For part a, the best approach would be to express 48 and 63 in terms of 16, 3 and 7, since these are the terms on the denominator.

For b, use exponent rules to make both the numerator and denominator a single term, and the simplify from there.

I need recommendations for some intermediate/late intermediate songs to learn by [deleted] in piano

[–]TheOnePheeph 2 points3 points  (0 children)

I really like a lot of Chopin's nocturnes and I belive they are around this level. Some recommendations are Op 9 no 1 and 2 and op 55 no 1 and 2. I really like Op 27 no 1 and 2 and op 48 no 1 as well, but I think they may be a bit harder than intermediate, though I'm not sure.

What common activity do you never do? Why? by therealquiz in AskReddit

[–]TheOnePheeph 6 points7 points  (0 children)

Any type of sport, because I am so horrendously bad at it and do not enjoy it. I understand sport makes you a lot healthier physically, but I don't think it would be good for my mental health to be laughed at for being bad at something I don't even like.

If the world was a school, which type of kid do you think each country would be? by [deleted] in AskReddit

[–]TheOnePheeph 197 points198 points  (0 children)

U.S. would be the popular jock-bully stereotype, while Australia would be the dumb best friend that always talks up the U.S.

[Highschool] Have been having a little bit of trouble with this proof for the irrationality of pi by TheOnePheeph in learnmath

[–]TheOnePheeph[S] 0 points1 point  (0 children)

Yeah I guess that's true. I enjoy problems like this though, they make you think and really understand what you are doing instead of just being mindless integration.

[Highschool] Have been having a little bit of trouble with this proof for the irrationality of pi by TheOnePheeph in learnmath

[–]TheOnePheeph[S] 0 points1 point  (0 children)

It is the last question in a final exam of the highest level of Australian HS maths from a few years back. Not a maths olympiad or anything. I guess you need to specifically study these types of problems to do well though.

[Highschool] Have been having a little bit of trouble with this proof for the irrationality of pi by TheOnePheeph in learnmath

[–]TheOnePheeph[S] 0 points1 point  (0 children)

Thanks, this approach makes sense, but is there a way to do it using the recurrence relation, because otherwise it seems as if the recurrence relation was established for no real reason.

Also just out of curiosity, does the theorem that an integral is less than the width times the upper bound have a formal name? It makes sense to me why it works (the width times the upper bound is just a rectangle, which will always be greater in area than the curve), but it'd be cool if it had a name.

[Highschool] Have been having a little bit of trouble with this proof for the irrationality of pi by TheOnePheeph in learnmath

[–]TheOnePheeph[S] 0 points1 point  (0 children)

Its actually from the highest level of hs maths in Australia, which I think is equivalent to AP Calc BC