# Search:

Page 1 of 50 1

1. ## Thread: Polynomials: Schur-Cohn Criterion.

Replies
8
Views
665

### Re: Polynomials: Schur-Cohn Criterion.

Well here's my attempt at the first one.

$We have the polynomial$ p(x)=x^2 + bx + c $, where$ c $and$ b $are real.$

$Let the roots be$ \alpha, \beta $such that$ |\alpha| < 1 $and$...
2. ## Thread: Polynomials: Schur-Cohn Criterion.

Replies
8
Views
665

### Re: Polynomials: Schur-Cohn Criterion.

Are the coefficients real?
3. ## Thread: Cool problem of the day!

Replies
129
Views
4,856

### Re: Cool problem of the day!

Yeah, and it was a lot of fun to do too. I am doing the first one now, so far got the z direction coordinate to be \frac{ln2}{3}
4. ## Thread: Cool problem of the day!

Replies
129
Views
4,856

### Re: Cool problem of the day!

Is the answer to the first one
(\frac{\pi}{4},\frac{ln2}{2})
5. ## Thread: A few thoughts on Mathematics

Replies
7
Views
2,160

### Re: A few thoughts on Mathematics

I had him for discrete this semester, I really liked him.

Replies
2
Views
220

### Re: eV?

As stated above, 1eV = 1.6 x 10^-19 J

eV stands for electronvolt, it's just another unit of energy, but it is related to an electron. You could use joules, it doesn't matter.
7. ## Thread: Should be easy question

Replies
15
Views
509

### Re: Should be easy question

I'd say sin[(2x+1)y]

Replies
13
Views
384

### Re: Help with mechanics question please

It's not hard, it is fun though, was probably my favourite topic in MX2! When you first look at it, it looks hard, but when you do it it's not really :p
9. ## Thread: UNSW Exams in a Marquee??

Replies
156
Views
8,113

### Re: UNSW Exams in a Marquee??

You know it ;)

Replies
13
Views
384

25413
There we go

Replies
13
Views
384

### Re: Help with mechanics question please

I didn't use a diagram lol, that's where the error came in :p
But I'll draw something up.

Replies
13
Views
384

### Re: Help with mechanics question please

I know what I did wrong....

fixed it.

Replies
13
Views
384

### Re: Help with mechanics question please

When the car is going down the hill, the forces acting upon it are
F=mg(\frac{1}{30}) - kv_d^2 \\ $The car is travelling at a constant velocity, and so$ F=0 \\ mg(\frac{1}{30}) = kv_d^2 \\ k =...

Replies
13
Views
384

### Re: Help with mechanics question please

I think I got it, I'll post a solution soon.

Replies
156
Views
8,113

Really? O.o
16. ## Thread: UNSW Exams in a Marquee??

Replies
156
Views
8,113

### Re: UNSW Exams in a Marquee??

Tents were fine, very warm. I was just in shorts and a t-shirt and I was fine. They have air conditioning running through it to heat/cool the place.
17. ## Thread: Finals coming up >:(

Replies
392
Views
15,609

### Re: Finals coming up >:(

Q3 was weird. I got an answer for it, but I managed to do all of it in about a page, which leads me to believe something went wrong...
18. ## Thread: UNSW Exams in a Marquee??

Replies
156
Views
8,113

### Re: UNSW Exams in a Marquee??

Yep... physics was delayed for an hr..
19. ## Thread: Finals coming up >:(

Replies
392
Views
15,609

### Re: Finals coming up >:(

Not to bad, question 5 was annoying because it made me draw 5 sin waves -.-

And it got delayed for an hr for some reason. Something about power failure in some other tents, so we had to wait so we...
20. ## Thread: Finals coming up >:(

Replies
392
Views
15,609

### Re: Finals coming up >:(

Physics today! Woo!
21. ## Thread: UNSW Exams in a Marquee??

Replies
156
Views
8,113

### Re: UNSW Exams in a Marquee??

They are temporary whilst they build the new buildings.
22. ## Thread: UNSW Exams in a Marquee??

Replies
156
Views
8,113

### Re: UNSW Exams in a Marquee??

I believe they are temporary structures.
23. ## Thread: Mechanics Freak Out!

Replies
7
Views
395

### Re: Mechanics Freak Out!

Resolve forces into horizontal and vertical components and you should be fine from there. Which part of mechanics are you struggling with?
24. ## Thread: Finals coming up >:(

Replies
392
Views
15,609

### Re: Finals coming up >:(

But it's still a camp :( I would have made it fun somehow!