Search found 112 matches

by gmedina
Sun Dec 05, 2010 4:48 pm UTC
Forum: Mathematics
Topic: LaTeX and other markup!
Replies: 73
Views: 35666

Re: LaTeX and other markup!

To reduce the space between the plus signs, I would change the code to \left[ \begin{array}{r@{\,+\,}c@{\,+\,}c@{\,+\,}l} a_{11}x_{1}o_{1}m_{3}f_{3}g_{7} & a_{12}x_{2} & \cdots & a_{1n}x_{n} \\ \multicolumn{4}{c}{\vdots} \\ a_{m1}x_{1}& a_{m2}x_{2} & \cdots & a_{mn}x{n} \end{...
by gmedina
Sun Dec 05, 2010 4:25 pm UTC
Forum: Mathematics
Topic: LaTeX and other markup!
Replies: 73
Views: 35666

Re: LaTeX and other markup!

Change \ldots to \cdots in Talith's code.
by gmedina
Fri Dec 03, 2010 2:12 am UTC
Forum: Mathematics
Topic: LaTeX and other markup!
Replies: 73
Views: 35666

Re: LaTeX and other markup!

...I like to use the align environment, though its kinda deprecated these days. You can do it all with array, or eqnarray, and they're both described pretty well in lshort.pdf. It's the other way around. In a LaTeX document it is advisable not to use eqnarray anymore and to use align (or any other ...
by gmedina
Thu Nov 08, 2007 3:15 pm UTC
Forum: Mathematics
Topic: Proof by contradiction is never needed!
Replies: 22
Views: 2822

Re: Proof by contradiction is never needed!

Edit
by gmedina
Tue Nov 06, 2007 5:01 pm UTC
Forum: Language/Linguistics
Topic: '-onomy' vs '-ology'
Replies: 2
Views: 6796

Re: '-onomy' vs '-ology'

Edit
by gmedina
Mon Nov 05, 2007 3:37 am UTC
Forum: Mathematics
Topic: Proficiency with LaTeX
Replies: 86
Views: 14133

Re: Proficiency with LaTeX

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by gmedina
Mon Nov 05, 2007 12:13 am UTC
Forum: Language/Linguistics
Topic: ¡Hablamos español! (Spanish Practice)
Replies: 483
Views: 213013

Re: Say something in Spanish!

Edit
by gmedina
Sun Nov 04, 2007 4:50 pm UTC
Forum: Mathematics
Topic: PIN
Replies: 8
Views: 2039

Re: PIN

Edit
by gmedina
Fri Nov 02, 2007 10:12 pm UTC
Forum: Language/Linguistics
Topic: ¡Hablamos español! (Spanish Practice)
Replies: 483
Views: 213013

Re: Other Languages You've Studied

Edit
by gmedina
Wed Oct 31, 2007 2:24 pm UTC
Forum: Mathematics
Topic: Aut(G) = {1}
Replies: 11
Views: 1789

Re: Aut(G) = {1}

Edit
by gmedina
Tue Oct 30, 2007 1:56 pm UTC
Forum: Logic Puzzles
Topic: CarTalk Puzzler this week
Replies: 9
Views: 2165

Re: CarTalk Puzzler this week

Edit
by gmedina
Tue Oct 30, 2007 3:50 am UTC
Forum: Mathematics
Topic: A question for abstract algebraists
Replies: 3
Views: 1181

Re: A question for abstract algebraists

Edit
by gmedina
Tue Oct 30, 2007 3:35 am UTC
Forum: Mathematics
Topic: Aut(G) = {1}
Replies: 11
Views: 1789

Re: Aut(G) = {1}

Edit
by gmedina
Tue Oct 30, 2007 2:34 am UTC
Forum: Mathematics
Topic: Aut(G) = {1}
Replies: 11
Views: 1789

Re: Aut(G) = {1}

Edit
by gmedina
Tue Oct 30, 2007 2:19 am UTC
Forum: Mathematics
Topic: Prove with Induction
Replies: 6
Views: 2858

Re: Prove with Induction

Edit
by gmedina
Sat Oct 27, 2007 11:37 pm UTC
Forum: Mathematics
Topic: Is the geometry of higher dimensions considered euclidean?
Replies: 16
Views: 2545

Re: Is the geometry of higher dimensions considered euclidean?

Mudge wrote:no. But some of them are. (Rn)

Just to clarify: Rn with the usual dot product is euclidean.
by gmedina
Sat Oct 27, 2007 8:43 pm UTC
Forum: Mathematics
Topic: exponential help
Replies: 2
Views: 1046

Re: exponential help

Edit
by gmedina
Sat Oct 27, 2007 12:46 am UTC
Forum: Language/Linguistics
Topic: Question for anyone who's good with Greek-English etymology
Replies: 1
Views: 1460

Re: Question for anyone who's good with Greek-English etymology

I don't speak Greek either, but in Spanish we have a lot of Greek roots, so I would say:
heptatetracontafilia (in Spanish) or heptatetracontaphilia (in English.)
by gmedina
Thu Oct 25, 2007 2:54 pm UTC
Forum: Music
Topic: Favorite Short Song
Replies: 57
Views: 6960

Re: Favorite Short Song

"Cheap Day Return" by Jethro Tull.
by gmedina
Thu Oct 25, 2007 1:37 am UTC
Forum: Language/Linguistics
Topic: 日本語 (Japanese Practice)
Replies: 552
Views: 197471

Re: 日本語

mekon wrote:Just wondering, are there any other Japanese speaking folks out there?...and would just like to know I'm not alone

There are at least 127.000.000 other ones. No, you're not alone.
by gmedina
Thu Oct 25, 2007 12:14 am UTC
Forum: Mathematics
Topic: Halp at Toplogy!
Replies: 10
Views: 1431

Re: Halp at Toplogy!

Given any open set U and x in U you must find at least one circle B with radius of rational length and whose center has rational coordinates such that x is an element of B and B is a subset of U.
by gmedina
Wed Oct 24, 2007 3:12 pm UTC
Forum: Mathematics
Topic: Strange Problem..
Replies: 13
Views: 1488

Re: Strange Problem..

Edit
by gmedina
Wed Oct 24, 2007 1:41 pm UTC
Forum: Mathematics
Topic: Solve this to win a prize.
Replies: 5
Views: 1422

Re: Solve this to win a prize.

you and dumb are one.
by gmedina
Sun Oct 21, 2007 10:06 pm UTC
Forum: Mathematics
Topic: Spanish help
Replies: 14
Views: 2523

Re: Spanish help

@aguacate: Although I studied in Colombia, I almost never read/use technical literature written in Spanish.
by gmedina
Sun Oct 21, 2007 8:35 pm UTC
Forum: Mathematics
Topic: Spanish help
Replies: 14
Views: 2523

Re: Spanish help

Topology = Topología
Set = Conjunto
Complex number = número complejo
field = cuerpo o campo
metric space = espacio métrico
theorem = teorema
prove = demostrar (o probar)
proof = demostración (o prueba)
element = elemento
region = región

If you need help with any other words/expressions, let me know.
by gmedina
Fri Oct 19, 2007 5:03 pm UTC
Forum: Mathematics
Topic: Some basic calculus I'd love to have explained to me
Replies: 47
Views: 5468

Re: Some basic calculus I'd love to have explained to me

Robin S wrote:Ok. But "derivative has a nonzero limit => function has an infinite limit" is still true.

"Patadas de ahogado" le decimos en mi tierra a este tipo de comentario.
by gmedina
Fri Oct 19, 2007 4:48 pm UTC
Forum: Mathematics
Topic: Proficiency with LaTeX
Replies: 86
Views: 14133

Re: Proficiency with LaTeX

Edit
by gmedina
Fri Oct 19, 2007 4:37 pm UTC
Forum: Mathematics
Topic: Proficiency with LaTeX
Replies: 86
Views: 14133

Re: Proficiency with LaTeX

Edit
by gmedina
Fri Oct 19, 2007 2:44 pm UTC
Forum: Mathematics
Topic: Some basic calculus I'd love to have explained to me
Replies: 47
Views: 5468

Re: Some basic calculus I'd love to have explained to me

GBog wrote:Another, much less exotic, counterexample of Robin S' statement is f(x) = ln (x)

Another? antonfire mentioned it only two posts above!
by gmedina
Thu Oct 18, 2007 2:29 pm UTC
Forum: Language/Linguistics
Topic: Words that are their own opposite
Replies: 67
Views: 9433

Re: Words like "cleave"

RAE wrote:luego.
(Del lat. vulg. loco, abl. de locus).
1. adv. t. Prontamente, sin dilación.
2. adv. t. Después, más tarde. Anoche fuimos al teatro, y luego a una sala de fiestas. Estudió derecho, y luego medicina.
...


So, luego means "right now" and it also means "later".
by gmedina
Tue Oct 16, 2007 8:40 pm UTC
Forum: Mathematics
Topic: Please explain this definition of e
Replies: 3
Views: 1384

Re: Please explain this definition of e

ossicle wrote:Isn't the derivative of e^x = xe ?

No, it is not. The derivative of e^x is e^x. That appears a few paragraphs below in the same WP page you mention.
by gmedina
Sat Oct 13, 2007 8:21 pm UTC
Forum: Language/Linguistics
Topic: Faux amis and/or false cognates
Replies: 141
Views: 17119

Re: Faux amis and/or false cognates

@Axman: I've never heard of "préservatif" meaning "condom". (I'm not sure I've heard "préservatif" used at all, actually.) Is it more widespread in France/Europe than in Québec, perhaps? As a marginal note, the above comment reminded me of the "preservativo" ...
by gmedina
Sat Oct 13, 2007 1:10 am UTC
Forum: Mathematics
Topic: Simplyfying sqrt(a+b)
Replies: 9
Views: 2001

Re: Simplyfying sqrt(a+b)

1) 101/2log(a + b) If you like logs better than square roots (disregarding obvious things) 2) You win this round. But your post was just barely useful. Bah. 3) I would hardly call the infinite sum you'll get from the binomial formula simpler than the original square root. Is there any way to express...
by gmedina
Sat Oct 13, 2007 12:39 am UTC
Forum: Mathematics
Topic: Simplyfying sqrt(a+b)
Replies: 9
Views: 2001

Re: Simplyfying sqrt(a+b)

Sana wrote:What you're thinking of is binomial theorem (a + b)n
But that is only for integer values of n.

There is something called generalization.
by gmedina
Sat Oct 13, 2007 12:08 am UTC
Forum: Mathematics
Topic: Simplyfying sqrt(a+b)
Replies: 9
Views: 2001

Re: Simplyfying sqrt(a+b)

Govalant wrote:Is there any way to express sqrt(a+b) in some other different way?

Yes, there is.
by gmedina
Fri Oct 12, 2007 11:26 pm UTC
Forum: Language/Linguistics
Topic: Faux amis and/or false cognates
Replies: 141
Views: 17119

Re: Faux amis and/or false cognates

I lived in Mexico for 14 months, but have never been to Colombia. What does it mean there? (Un)Fortunately we have the RAE luego. (Del lat. vulg. loco, abl. de locus). 1. adv. t. Prontamente, sin dilación. 2. adv. t. Después, más tarde. Anoche fuimos al teatro, y luego a una sala de fiestas. Estudi...
by gmedina
Fri Oct 12, 2007 7:37 pm UTC
Forum: Books
Topic: Catch 22
Replies: 97
Views: 17478

Re: Catch 22

Amussing, funny, not trascendental.

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