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02:11 PM on 11/25/09 
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tonyC4L
tech-savvy at-risk youth
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Lake Forest, CA
Male - 24 Years Old
Anyone particularly good at abstract algebra?
I got an A when I took it last winter, but it was just the first course in the series of two and I didn't take the second one. I think we stopped just short of learning about rings. I may not be too much help, but if you have a question you should post it anyway and someone can probably answer it.
03:35 PM on 11/25/09 
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LikeSwingSets
supersammyspeedgraphic
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Manchester, England
Male - 19 Years Old
sweet
this thread's getting bookmarked.
07:06 PM on 11/25/09 
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concernedparent
I'm very concerned.
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San Jose, CA
Male
I love factorials. They always make me laugh during a boring lecture, because it looks funny having an exclamation mark after a number.
09:31 PM on 11/25/09 
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perceptrons
Replicant.
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Male - 25 Years Old
I love factorials. They always make me laugh during a boring lecture, because it looks funny having an exclamation mark after a number.
Factorials can be annoying at times, however.
06:01 AM on 11/27/09 
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John JD Dorian
walks amongst us, not one of us
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St Louis, MO
Male - 24 Years Old
I love factorials. They always make me laugh during a boring lecture, because it looks funny having an exclamation mark after a number.

the gamma function is awesome.
09:34 AM on 12/08/09 
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John JD Dorian
walks amongst us, not one of us
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St Louis, MO
Male - 24 Years Old
finals time -- someone ought to have a question.
04:47 PM on 12/09/09 
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tonyC4L
tech-savvy at-risk youth
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Lake Forest, CA
Male - 24 Years Old
Just finished the last of my math finals today, so no questions from me for a few weeks. Unless someone wants to take a stab at this one from my complex analysis final:

Let f(z) be entire (i.e. analytic on all of C) and let |f(z)| > 1. Prove that f is constant.

My first thought was to use the the theorem that the only bounded entire functions are constant functions (and then be done), but f is not bounded so I didn't know what to do. If only the inequality were the other way...
12:54 AM on 12/18/09 
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tonyC4L
tech-savvy at-risk youth
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Lake Forest, CA
Male - 24 Years Old
Apparently nobody likes complex numbers... anyway I think I got an answer to that problem. If f(z) is entire, then so is 1/f(z), and |1/f(z)| < 1, so it is bounded and entire and thus constant. Clearly then f(z) is constant as well.
10:33 PM on 01/12/10 
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Spenny
Go if you want, I can't stop you.
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Vancouver, BC
Male - 21 Years Old
If anyone has an interesting math problem to talk about, or needs help with something they're working on, bring it in here!
If you're still interested, I have one.

Express the function in the form (f o g).

You're given g(x) = cuberoot(x/1+x)
02:21 PM on 01/13/10 
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John JD Dorian
walks amongst us, not one of us
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St Louis, MO
Male - 24 Years Old
If you're still interested, I have one.

Express the function in the form (f o g).

You're given g(x) = cuberoot(x/1+x)

i'm confused. express what function?
02:39 PM on 01/13/10 
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fishguts182
Pop Punks For Hugs Not Thugs
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New Mexico
Male - 23 Years Old
anyone here ever taken discrete math or linear algebra?
11:55 PM on 01/13/10 
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Spenny
Go if you want, I can't stop you.
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Vancouver, BC
Male - 21 Years Old
i'm confused. express what function?
My bad. It gives you G(x) = cuberoot(x/1+x) and tells you to express it in the form f of g, or f(g(x))

I discovered that all you have to do is give what f(x) and g(x) are, which are f(x) = cuberoot(x) and g(x) = x/1+x
06:16 AM on 01/14/10 
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John JD Dorian
walks amongst us, not one of us
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St Louis, MO
Male - 24 Years Old
anyone here ever taken discrete math or linear algebra?

yeah ask away.
08:16 AM on 01/14/10 
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fishguts182
Pop Punks For Hugs Not Thugs
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New Mexico
Male - 23 Years Old

im gonna be taking them this semester. How tough should these classes be?
11:15 AM on 01/14/10 
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John JD Dorian
walks amongst us, not one of us
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St Louis, MO
Male - 24 Years Old
im gonna be taking them this semester. How tough should these classes be?

what level?



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