/sci/ - Science & Math

This is self-learning, not homework.

I never finished grade 9 and now I've worked my way up to equivalent of calculus I material. I've done the basic derivatives and integrals, but I'm looking back at a log question that I can't seem to work out.

So, here is the question:

How do I evaluate the left handed limit of ln(x-a) as x goes to a? I mean I know it will be infinity, but how do I show this?

>>6397985

what the fuck
why is mathematica so troublesome?

I want to use a Manipulate function for *two* plots at the same time, but on top of each other, not side by side

how do I do this?

I don't know what kind of /sci/ related ones I have...

>>5605676
The TREEEE OF MATHSSSS

hey /sci/
Where does a brother learn about group theory?

>>5481942

Hey /sci/ I'm taking Calc III and I am dumbfounded as to how to convert a parametric equation to a vector one.
Say I have the equation -2x-9y+9z=-13
I understand that it can be represented in the form of vectors, but can't there be multiple equations depending on what point I choose? Not sure what I'm doing. Google didn't help much.

Give a power series of log as Sum a_n * z^n with radius of convergence > 0

Why does science work

For all
GERMANFAGS ONLY

watch
http://www.youtube.com/watch?v=3Fe-a2gUccs

Long time lurker and at times contributor. I was curious if anyone would be willing to share their related syllabuses for their disciplines of study. I'm trying to build a map on http://mapper.nndb.com/ with several of the scientific fields. I graduated a year and a half ago with double degrees in comprehensive mathematics and philosophy. I minored in physics/chemistry and am currently taking (almost over!) a more advanced class on quantum mechanics and a mid-tier CS class.

The pic I posted is very related to the task I'm trying to undergo. Of course, if anyone has other resources to help "map" out the disciplines based on their touchstones it would be much appreciated.

It's survey time /sci/

Your degree
Jobs you did
Pros and cons of each

What did /sci/ get in calculus I? I go to a large state school, when I took calc there were ~1500 students taking the class. The average was 70% on the dot. I got an 82%, a B-.

And don't lie, that would be pointless.

Hey /sci/, I need to prove by induction and with following help:
e = [an, bn]
an = (1+1/n)^n
bn = (1+1/n)^n+1

e(n/e)^n <= n! <= n*e(n/e)^n

- for n=1
e*1/e = 1 <= 1 <= 1e*1/e

So:
e((n+1)/e)^n+1 <= (n+1)! <= (n+1)*e((n+1)/e)^n+1

What now ?
I could
e * (n+1)/e * ((n+1)/e)^n <= (n+1)n! <= (n+1)e * ((n+1)/e) * ((n+1)/e)^n

n+1 ((n+1)/e)^n <= (n+1)n! <= (n+1)² * ((n+1)/e)^n

/SCI/ MATHEMATICS QUESTIONNAIRE:

at what age were you exposed to the following mathematical concepts:

fractions
trigonometry
differential calculus basics
integral calculus basics
multivariable calculus
differential equations
partial differentiation
partial differential equations
vectors
matrices
groups
complex algebra
analysis
complex analysis

What causes anxiousness?

>>5137106
3 can combine with 2 as follows:
(xy/xy)^(2/3)
But xy/xy is simply 1
So you can simplify the whole expression to 1

>>5137101
this guy is full of shit

Here's a cool lookin graph. Usually for physics undergrads that is, you go calc 1, calc 2, calc 3, then diff eq. (at least for my school) You can choose to take classes like mathematical physics which helps because often times you'll learn a certain physics concept that requires a mathematical tool beyond the scope of your calc classes. Besides that, those higher level topics (topology, diff geometry, etc) are probably taken at the graduate level, and depend on what you focus on as a graduate student. Hope this helped

Hello /sci/ I want to ask you for a piece of advice. I am going into my senior year of high school (already 18, went into pre-k late) and I want to go to school for Physics/Computer Science I'm not exactly sure which yet. However, my class choices for the first three years of high school were not at all conducive to pursuing these majors. I didn't take any advanced math class because, well I can make excuses all I want but when it comes down to it I was lazy. My question to /sci/ is; Is it possible to take an advanced math course (Algebra 2/Trig) in my senior year and be ready for college, or will I still be too far behind everyone else in college?
tl;dr: Senior didn't take any advanced math, is it too late?
(Pic not really related)

Can x-ray radiation, for example from a dental office machine, cause brain damage?