Intro Definition and 547 Threads

Hey everyone, I was hoping to get some input on this question. I'm starting up an algebra based general physics sequence this fall, and I'm wondering how important basic geometry is going to be for it. I've never actually taken geometry, but I've done a decent amount of self study. I went...

I'm about to take vector analysis and abstract algebra, so I'm pretty far along in my undergrad math program (passed Calc III, DE II, LA, and Transition to Higher Math). Realistically I could finish off the core math requirements in one year for my B.A. However, I want to expand and take some...

Any suggestions? I'm coming from a math/crypto background.

Hey all, so my university's game theory course never runs due to lack of students signing up for it, so I'm taking it upon myself to learn what I can about this fascinating subject. I'm specifically looking for a game theory text which is: a) introductory b) for upper-level math undergraduates...

I've just bought(and borrowed) these books : A first course in calculus by lang(621 pages but apparentely I've heard it lacks exercises(not enough)) Essential Calculus with Applications by silverman(286 pages apparently very good exercises) or The calculus lifesaver by Banner(about the same...

Hi, fellas, I am back again with more questions.:smile: Those who've seen my posts here might recall that I have never been exposed to physics ever before, and now majoring in Chem E, I'll be taking loads of it. I've delayed taking the physics 1 until spring next year because it's calc based...

Homework Statement For inverting op-amps Vout = -Vin(R2/R1) But I've no clue what happens when you add third resistor with a voltage source to the amplifier. Is there a general gain equation for such circuit? See the attached problem in the image. Homework Equations For...

Hello all, I recently received a job doing pharmaceutical sales. So I need to brush up on some of chemistry (took it 7 years ago, don't remember much). My girlfriend is a chemist so I can use her for help if I get stuck on something I don't get, but besides that, what is the best intro book...

I'll be starting a summer research thing soon which involves using VASP to do materials science/electron structure calculations. I've only taken a semester of quantum mechanics. What are some good intro resources for this subject area?

So I'm trying to get through euler's introduction to the analysis of the infinite so I could eventually read his books on calculus but I'm stuck somewhere and can't seem to figure out how he equates this identity so by expanding I get sin(2y) * cos(z) + cos(2y) * sin(z). I get that the...

Hello folks. I am taking some courses next semester over at Wayne, one of which is a 500 level, graduate level difficulty mechanics course. It's the course typically taken at the 300 level. I was wondering if anybody knew of a great book for this course at this level. I have both Taylor and...

Homework Statement Consider first a free particle (Potential energy zero everywhere). When the particle at a given time is prepared in a state ψ (x) it has <x> = 0 and <p> = 0. The particle is now prepared in Ψ (x, t = 0) = ψ (x) exp (ikx) Give <p> at time t = 0. It can be shown that in...

Homework Statement There are 7 different routes from A to B, 4 different routes from B to C, and two different routes from C to A. What are the possible routes from A to C and back, allowing any route to be traversed once in each direction.Homework Equations The Attempt at a Solution So I think...

on a visible spectrum scale what are the numbers for the colors of ROYGBIV? for example is violet 400-500nm and red is 700-800nm? how about the other colors? If the energy of a photon is 2.63 x 10^-19 J, how can we tell what color this is? i was looking at this electromagnetic spectrum and it...

Problem #1: What i did so far was I source transformed the left side with the Io and 4Ω into a voltage of 4Io. Then i did mesh analysis, io and i2. the eq'ns i got are 4vx - 2I2 - 2Io = 0 10i2 - vx - 2io = 0 IM not sure if this is right but does i2 = vx/4?? because of I = V/R? I worked...

So I am currently a math undergraduate (senior though) taking an introduction partial differential equations. We are using the PDE book by Farlow (Dover reprint). It seems to be a solid book though my professor does diverge from the methods used in it fairly regularly (like not making...

Solve x/ x-2 >2 by first rewriting it in the form P(x) / Q(x) >0 How do I go about first rewriting it into that form?

http://imageshack.us/photo/my-images/585/circuitzzz.png/ i thought maybe i should ignore everything that is on the right side of the 3v and just focus on the left side. but this one is not looking too good for me. any ideas on this one??

Homework Statement A bug crawls outward from the center of a CD spinning at 200 revolutions per minute. The coefficient of static friction between the bug’s sticky feet and the disc surface is 1.2. How far does the bug get from the center before slipping? What is the speed of the bug just...

I was able to solve this pretty easily using mesh analysis, but what other ways can you use to solve this circuit? http://imageshack.us/photo/my-images/259/circuita.png/

Homework Statement 1) An elevator cable can withstand a maximum tension of 19,500N before breaking. The elevator has a mass of 490 kg and a maximum acceleration of 2.24 m/s2. Engineering safety standards require that the cable tension never exceed two-thirds of the breaking tension. How may...

Can anyone suggest a good book on basic number theory or an introduction text to it. I have been looking but don't have much of an idea on what to use. Thank you.

Hi - I recently bought an old edition of carroll ostlie real cheap and I'm not too motivated because the book is gigantic and unwieldy. anyone know of a good intro astrophysics book on that level but in a fun-size/portable? :D Thanks

Hello everyone, I just graduated from college, but I never took introductory physics. Of course, this lead to some "interesting" situations (learning about friction and torque in classical mechanics, for instance). Since I'm going to graduate school, I'm purchasing textbooks, but I have...

Hi guys, I have recently come across a video on YouTube which gives you a brief intro to Quantum Mechanics/Physics. Can someone tell me if this video is accurate? Could someone suggest some introductory reading or resources for learning QM? Is it even accessible to a 15 year old? Should I just...

By intro physics I mean calculus based Physics I (Newtonian physics). I'm a freshman planning on majoring in CS and this is my first semester in college. I'm doing well in all my other courses, all A's (calc, intro to CS, others)... but physics, man. I'm not kidding when I say, with a 5...

I am doing an introductory analysis and groups course next semester and I have a couple of questions about books. The course textbook is 'An introduction to Analysis' by W R Wade. Can anyone tell me if/when a new edition is expected and if not, what the current edition of the book is? I tried...

Pdf of "Not So Short Intro to Latex" Hi everyone I'm trying to download "The Not So Short Introduction to LaTeX2e" by Oetiker, but every link I try I get the message "This webpage wants to run the following add-on: 'Zeon Corporation' from 'Zeon Corporation'." Then I am asked if I want to allow...

Hello. I am taking intro to modern physics and optics next semester, the intro to modern physics is a 300 level class and the optics course is a 500 level class, at Wayne State University. I want to come into next semester very well practiced in the math needed for those classes. Could...

I took AP Chemistry in high school and loved it and I made an A. I am taking an introduction to chemistry at my Uni, and we just got back the results of our first exam. I made a 63% on the exam and I am not happy with my performance. The class average was a 30% but that doesn't affect my...

The link is an image with the question and circuit representation: http://i49.tinypic.com/2mmwg8l.png Here are the equations I used: V_out/V_in = R_2/(R_1 + R_2) {using the node method} R_thevenin (R_th) = R_2*R_1/(R_1+R_2) And given the conditions => 10 < R_th < 30...

Need a good real analysis book for undergrad "intro" course I'm a computational math major (double majoring with MechE) and basically I'm required to take an "intro" (400 level) real analysis sequence with the comp. math department. This course is shaping up to be an incredibly nasty surprise...

College Physics -- Intro Physics for majors So, I'm taking College Physics and were using...College Physics(strategic approach) by Knight, volume I. My approach to getting an A in the course is to study 3 times as many as the assigned homework problems(Only about 12 a week!), chew through...

Homework Statement What function do you know from calculus is such that its first derivative is a constant multiple k of itself? (Do not use the function f(x) = 0.) Homework Equations The previous question asked what function was a derivative of itself - with the pretty easy answer...

I'm taking an intro to proof's class this semester. What are your thoughts on Velleman's How to prove it book? Are the exercises easy or hard to do?

I'm sure this has already been a thread but I'm currently taking my first analysis course and I was wondering (because the tiny bit I've been introduced to so far is so interesting) what the best intro books to topology would be. Thanks!

I plan to study a math degree but I'm somewhat intrigued by computer/information science, and it's links to things like neuroscience and machine learning. Eg. just flicking through a few pages of this: http://www.amazon.com/dp/0521642981/?tag=pfamazon01-20 really fascinates me, though I...

Homework Statement How far will a football travel when it is thrown at 62 km/h at an angle of 35° to the ground? Homework Equations V1v = v1 sinθ; Δd= V1v * Δt + 1/2 * (-9.8 m/s^2) * Δt^2; The Attempt at a Solution V1v = v1 sinθ V1v = 17.2 m/s sin35° [up] =9.9 m/s [up] Δd= = V1v...

Homework Statement The probability of a student losing his library card is X each time he goes to the library. He goes to a different library 5 times a week, starting from Monday and ending on Friday. 1)At the end of the day on Thursday, he finally checks his wallet and realizes his library...

hi! i study statistical mechanics from this book at the moment and I'm a little bit confused somtimes. i thougt if anybody else is using this book, we could discuss and clarify confusions (or errata) here. please let me know if anyone is out there... greetings!

Hello, I would like to check my arguments for this problem. Homework Statement Consider the relation R = \{(x,y) \in \mathbb{R} \times \mathbb{R}: x-y \in \mathbb{Z}\} on \mathbb{R} . Prove that this relation is symmetric, reflexive, and transitive. Homework Equations Supposing a relation...

Hi, is it a bad idea to take Intro to Linear Algebra Vector Calc for Applications (Marsden) Intro to Probability (book called first course in probability by ross) .. in the same semester? This semester I took discrete math and Calc 1 at the same time and it was pretty time consuming but...

Homework Statement Prove or disprove: Suppose f:[a,b]->R is continuous. If f is diff on interval (a,b) and f'(x) has a limit at b, then f is diff at b. Homework Equations We say that f is differentiable at x0 to mean that there exists a number A such that: f(x)=f(x0)+A(x-x0)+REM...

Hey, I'm new to the forum so I'm not sure if I posted this in the right section. I'm taking Intro to Logic and I'm having some problems. Proofs: Construct proofs for each of the following symbolic arguments. Commas are used to mark the breaks between premises. (Each proof can be completed in...

Homework Statement a) Find f ([0,3]) for the following function: f(x)=1/3 x^3 − x + 1 b) Consider the following function : f(x) = e^(−ax) (e raised to the power of '-a' times 'x') a, x ∈ [0,∞) Find values of a for which f is a contraction . c) Prove that for all x,y ≤ 0 | 2^x −2^y | ≤ |x−y|

Two objects A and B are traveling in opposite direction on a straight line. At t=0 A and B are at positions P(A)=(-40, -20) and P(B)=(190, 980), respectively. If additionally, their paths are parameterized by directions V(A)=(3,5) and V(B)=(-24, -40), respectively. Then, a) find the point...

Homework Statement Calculate the load on each member Homework Equations \sum \tau=0 -because it isn't rotating. \sum F =0 - because it isn't moving. \tau = Fd\sin \theta - to take the torque at any point The Attempt at a Solution I can calculate the torques at each point. I...

Hey guys, I'm thinking of self studying some math this summer, and combinatorics is one field I never really got into but want to learn a bit of. I rigorous proof experience from reading other books/taking rigorous classes, so I wanted to start off with something relatively rigorous. Thanks

Homework Statement Homework Equations The Attempt at a Solution b) I could figure it out if kz was changed to kx... Double Derivative of E(r, t) with respect to x is = 0 Double Derivative of E(r, t) with respect to t is = -ω2*E0*cos(kz - wt + ∅0) Multiply the second term by k2/ω2...

Hello everyone, I'm in my sophomore year of undergrad and I've recently started to do some work for an experimental particle physicist at my university. Right now he's really into neutrino oscillations (MINOS collaboration member) and neutrinoless double beta decay (NEMO3/SuperNEMO...