108 reputation
5
bio website
location Sydney, Australia
age 33
visits member for 1 year, 8 months
seen May 29 at 13:32

I am a PhD candidate at the University of New South Wales. I love LaTeX because it makes my documents look fantastic and I can do all sorts of presentation and data-integration tricks that Word or OO users wouldn't be able to do in a million years, in particular, integrating R with LaTeX is a magical combination.

I encourage my colleagues to use LaTeX, but not many people are willing to go through the (quick) learning curve despite recognizing and commenting on the obvious presentation differences. Perhaps when their theses' are approaching the 200pg+ mark, with many tables and figures causing their system to crash, then they may reconsider...


May
29
comment Check whether a point is within a 3D Triangle
How can you have a 3D plane, planes are 2D?
Aug
8
awarded  Student
Aug
6
awarded  Scholar
Aug
6
accepted Number of Combinations from 1 to 100
Aug
6
comment Number of Combinations from 1 to 100
OMG. That is just ridiculously easy when you present it like that. Thanks.
Aug
6
comment Number of Combinations from 1 to 100
Consider this, say I want to create a chemical mixture of 5 constituents (ie I mix together 5 different chemicals) for some sort testing. How many experiments am I required to to run, to cover all mixtures, if I am to create a grid with a concentration step (for each constituent) of 0.5%, noting that in each experiment, A + B + C + D + E = 100%
Aug
6
awarded  Commentator
Aug
6
comment Number of Combinations from 1 to 100
Yes, and for example (1,99) != (99,1), the case of 2 sets is rather trivial (can do it by hand), but when there are 5 or more sets...
Aug
6
comment Number of Combinations from 1 to 100
@Omnitic, not subsets, pairs. But I seek to generalize for more than 3 sets, and, where the increment is smaller (say if the set is: 0, 0.5, 1, 1.5, ... 100)
Aug
6
comment Number of Combinations from 1 to 100
Yes they are different.
Aug
6
comment Number of Combinations from 1 to 100
Probably something like the total number of combinations, multiplied by a coefficient representing 1 - the probability of exceeding the limit.
Aug
6
asked Number of Combinations from 1 to 100
May
27
awarded  Supporter
May
20
comment What is $-i$ exactly?
Yeah but it means that the reputation 'always goes up'. I wonder if we will see a reputation bubble....
May
20
comment What is $-i$ exactly?
Can someone explain why I cant vote down (only vote up) until I have 125 reputation? What is this, sub-prime mortgages; Is this some way to ensure net-inflationary BS stackexchange reputation?
May
20
comment What is $-i$ exactly?
I don't agree with your first statement. The positive imaginary number line is i 2i 3i 4i...., you can also have 0i, -1i -2i -3i etc, so saying that i doesn't have any sign is as nonsensical as saying the number 1 or x or y doesn't have a sign.
Dec
20
comment Can't argue with success? Looking for “bad math” that “gets away with it”
@Jonas Meyer, thanks. I didn't realize the power laws were constrained like that, to me they were just identities. Doesn't that then undermine the proof for Euler's Formula, where $e^{-ix}$ is divided by $e^{-ix}$ (once the derivative is proved to be constant), yielding the desired identity?
Dec
20
comment Can't argue with success? Looking for “bad math” that “gets away with it”
Whats wrong with that? The answer could have been achieved directly, apart from that, I don't actually see anything wrong?
Dec
19
comment Can't argue with success? Looking for “bad math” that “gets away with it”
And this whole thread is off topic from this entire site. A whole thread of incorrect proofs, please...
Dec
18
awarded  Teacher