Class Definition and 909 Threads

Is a "W" bad? I recently switched majors from EE to physics. At the moment i am enrolled in an intro to EE class. Now i want to drop this class, one because i don't need it anymore, and two, i could be working and making money instead of being there. Will the W on my transcript be bad for grad...

I'm currently a Bio major in freshman year, and I currently have plans to go to optometry school. The thing is, I made the mistake of underestimating a class (Freshman Biology) and "ruined" my gpa as a result. I got an A-, which is perfectly fine, but nonetheless, if I had put forth a little bit...

I really, really try to avoid blaming teachers and professors for bad grades. Having said that, this class is such a mess that I'm not sure what the right course of action is. I think the guy (A Phd. student) is probably in over his head. He is getting lost in class quite a bit - he hands...

Is an electrical engineering major like myself going to have a hard time gettin through my bachelors if i can't stand learning a programming language? I love studying the sciences but something about cse bores the crap out of me.

hi, i'm an agriculture engineer and i want to take graduate degree in Physics -especially Astrophysics. I'm 36 years old. i need to remember many course. therefore, I'm searching best books in this forum. but i can't make a decision which them are the best... also i have these books...

I'm hoping for verification here that I'm not crazy on some very very basic chemistry questions. I've worked 7 problems on a practice test (the real thing is next Tuesday). Only 2 of my answers agree with the answer key. Here are the most dramatic examples. Please tell me I'm not crazy...

Homework Statement Problem: Tele-Annoy, a telemarketing company has asked you to write a program that when given the area code to dial, generates the next three potential telephone numbers, and then outputs them to the screen for one of their sales representatives to call. Use the area code...

I have a list: 85 45 75 60 90 90 115 30 55 58 78 120 80 65 65 140 65 50 30 125 75 137 80 120 15 45 70 65 50 45 95 70 70 28 40 125 105 75 80 70 90 68 73 75 55 70 95 65 200 75 15 90 46 33 100 65 60 55 85 50 10 68 99 145 45 75 45 95 85 65 65 52 82 Sorry for the poor formatting, but I created a...

Hi, Thank you in advance if anyone can answer this question. How any stationary distributions exists in below matrix and what are the value [ .5 0 0 .5 .25 .5 .25 0 0 0 1 0 1/6 0 0 5/6 ] Any information regarding how to compute stationary distribution in a martrix with more...

Homework Statement Ok, so I have the problem, and I have the answer, but I don't know how they arrived at the answer. I'll show you the problem, and what I tried and maybe somebody can point out where I am going wrong, or some hints to put me on the right path. (2x-1)/(x+1) being integrated on...

Having a very hard time in my PRECALC CLASS. When they facto problems they start pulling numbers out of numbers that aren't there.. Example.. 3(4x+5)^2 (4)(5x+1)^2 + (4x+5)^3 (2) (5x+1)(5) Professor said this was the answer. a) 2(4x+5)^2(5x+1)[6(5x+1)+5(4x+5)] = b)...

Hey Guys, So I am taking Physics 1: Mechanics (Calc Based) this semester along with Calc 2 and General Chem 1. I am pretty worried since I have never taken a physics class and this class is notoriously hard. With enough studying and effort is this a class you can do well in regardless of...

Two (related) questions: (A) If I understand correctly (no guarantee to that), in an Everett-type Many-Worlds-Theory of Quantum Mechanics, every probability amplitude is associated with a world. This would mean, for a single particle, that there would be as many worlds ("be" in the sense of a...

3rd class in final year (2.3 GPA)...any advice? Just incase anyone is wondering, a 3rd class is approximately 2.3 GPA http://www.ten-percent.co.uk/conversion-table-for-us-gpa-to-uk-class-degrees So I'm in my 3rd year and final year struggling with my degree in physics and just can't seem to...

I'm taking General Physics I (already taken and passed) and II at a CC this year (in other words, algebra based). The adviser told me that it would make no difference when transferring to a university. Now I'm not too sure. From my understanding, Gen Phys 1 is not much different than calculus...

I'm in the United States, taking undergraduate courses, and I believe I had what was an introduction to special relativity in Modern Physics class (Lorenz transformations, time dilation, the relativistic doppler effect, time dilation, length contraction, etc.). I just wonder what class general...

Does anyone know a good book about Class D amplifiers, or perhaps some other resources? I'm looking for a place where they have a good analytical approach. Equations and stuff, and explanations thereof. Any takers?

Hi :shy: I'm a new member here for a long time I'm looking for a help in my project Power Push-Pull Amp ( class AB ) :cry: Can anyone help me with circuit diagram in Multisim for class AB or anything :biggrin:

Hello my name is Gordon and I really need an engineer to answer these questions for me. I really consider to advance in engineering and am currently taking POE. Someone who is an engineering in any field please answer these questions they mean a lot thanks. 1:Your Name 2:Your Specific Degree...

I'm trying to convert my __init__ to __new__, but I can't find any docs on how the syntax differs or anything really, that pertains to how this bug could be caused by it. What am I doing wrong here? import copy; class grid(list): def __new__(self, size): self.size = size...

Hi, I wanted to try to use cmd to compile and run a program in java. I have sucessfully compiled it. The compiler is working properly (C:\new> javac output the compilers functions), but I'm always getting the same error: "Error: Could not find or load main class hello". When I specify the...

I need to design a class D low power RF amp that I can control the RF output of without tampering with the input signal. I need about 200mW out @ 50 MHz but the input drive is a digital coded pulse train I can't tamper with in any way. I need class D for best efficiency and battery life. How...

Homework Statement A group G of order 12 contains a conjugacy class C(x) of order 4. Prove that the center of G is trivial.Homework Equations |G| = |Z(x)| * |C(x)| (Z(x) is the centralizer of an element x\inG, the center of a group will be denoted as Z(G)) The Attempt at a Solution Let G...

Sorry about the long title. I recently had a few homework problems which were similar to the title of the post. I struggled a bit with them so I'm trying to find additional problems to work on until I can master these ideas... Basically, if we have a group G s.t. |G|=n, and we know G has a...

next semester I have a choice between solid state physics and statistical mechanics. I will take the other class next year. My interests are in experimental materials science. The solid state class will focus on electromagnetic properties of materials covering crystal structure and X-ray...

Hey guys, I need to take two more math two more math courses to qualify for a minor in mathematics, but I want to pick two classes which will help me become a better problem solver. I copied the list below, in your opinion which do you feel will be a class that would enhance my problem...

Hi everyone, It's that time again at my school-registration. I've been picking out my classes but I came across a rather annoying dilemma. My discrete math and data structures and program design classes conflict temporally. The discrete math class would count for my math minor, and the data...

Okay so what does this line of code mean: snleg = strtrim(cellstr(num2str(alf_deg.'))); I did some research and it is ultimately removing whitespace (comma's, spaces etc) from a file scanned in, but I don't understand the argument of the function. I don't understand what cellstr is or...

I am currently reading a paper discussing the convexity of the image of moment maps for loop groups. In particular, if G is a compact Lie group and S^1 is the circle, the paper defines the loops group to be the set of function f: S^1 \to G of "Sobolev class H^1 ." Now in the traditional...

How man of you preread for a math class? All members welcome, mods, homework helpers etc... Talking specifically about math classes. What if an instructor doesn't give the sections to read. When I do preread, it helps a lot to focus in class and gain more from lecture. Almost always otherwise I...

Just posting to ask if anyone has any tips to give for a student in a Junior level Electromagnetic fields class. We usually get about 10-20 problems/week and I manage to only get 6-7 of them done every time. Also, though I generally do well with it, I'm struggling to find the energy to read...

Homework Statement Laplace Transform teat Homework Equations The Attempt at a Solution http://img521.imageshack.us/img521/6449/homeworkhelp.jpg Not sure where I am going wrong. I feel like I did integration by parts incorrectly, because the anser I have boxed is not the...

I am taking C++ this semester, and am not really good at it. It is my first programming class, and I kind of stink, though I am trying. I don't think I'm going to get a great grade, and it will bring down my average. I was thinking of dropping it, but then had a look at the class averages...most...

Hello, This semester I am taking my first discrete math course. I am thoroughly enjoying the material, but am dreading the professor and textbook. The consensus amongst my classmates is that the professor is excessively convoluted in his conveyance of the material, and that the textbook does...

Hello, I am trying to figure out what I did wrong and I couldn't figure it out. here is the error code: setMake(java.lang.String) in Automobile cannot be applied to (). Class file: import java.util.Scanner; public class Automobile { private int num; //number of automobiles to...

Prove that ordda | ordma, when d|m. Some conditions are 1 ≤ d, 1 ≤ m, and gcd(a,d)=1. What I have so far: let x=ordma, which gives us ax\equiv 1 (mod m) \Rightarrow ax=mk+1 for some k\in[SIZE="3"]Z Let m=m'd. Then ax=mk+1=d(m'k)+1

I am a Freshman EE/CS major. So far, the classes I have chosen so far are: Calc 3 (4 hours) Linear Algebra (3 Hours) Basic Concepts Of Math ( Mathematical proofs, set theory, mathematical induction and recursion, binary relations, functions, definition and development of some common...

Hello, I think this is my first post here, but I've lurked for quite a while as a silent user and even before then as a non-user. I'm currently enrolled and majoring in pre-engineering at a community college in Mississippi. So far, I've taken Algebra, Trig, and calculus 1, and I'm...

What topics/chapters are covered in a typical linear algebra class? I am a physics/math major but I won't be able to take classes for a few years. I am trying to teach myself linear algebra so I can read physics textbooks. Thanks

Hey guys, I'm trying to avoid taking a pre-calculus class so i can take Calculus in the spring. I found resources from OCW which I'm going to use in order to learn on my own in the Fall so I'll be prepared in the spring for Calculus. Can somebody please take 10-15 minutes to look over this...

Is it really that bad to withdraw from a class? I am taking 18 credits and I am taking the following classes: Computer Based Experimentation Classical Mechanics Multivariable Calculus Linear Algebra Computing for math & science Students in Transition Seminar I'm going to drop 1 class, computer...

Homework Statement I was assigned a worksheet for a biomechanics class that had a simple impulse-momentum problem. My instructor and I disagree about the means to solve the problem. "A pitched ball with a mass of 150g (.15kg) reaches a catcher's glove traveling at a velocity of 28m/s...

Homework Statement For any positive integer n determine: \sum\limits^n_{i=0} \frac{1}{i!(n-i)!}Homework Equations I don't really know where to start.. Up until this point we've just been doing permutations, combinations, and determining the coefficient of a certain term in the expansion of a...

Homework Statement I am curious, if I,J, and M are ideals of the commutative ring R, and M/I\subseteqJ/I, then M\subseteqJHomework Equations M/I = { m+I : m is in M} J/I = { j+I : j is in J} I\subseteqR is an ideal if 1.) if a and b are in I then a+b is in I 2.) if r is in R and a is in I...

Homework Statement ~ is a equivalence relation on integers defined as: a~b if and only if 2a+3b is divisible by 5 What is the equivalence class of 0 Homework Equations The Attempt at a Solution [0] = {0, 5n} n is an integer My reasoning for choosing 0 is that if a=0...

I added a class before the add due date, but dropped it right after by accident (after the drop due date). Now, I received a grade R in the class, which I'm guessing means incomplete or something. The time in between which I added and dropped right after is less than like 20 seconds. What can I do?

Hi all, (sorry for the length) I am an Applied Physics major in her senior year (yay!) at a liberal arts college. I have a double minor in Mathematics and Computational Physical Sciences (aka Programming, but not Comp Sci.) Because of the way the sciences are set up at my college, it's...

I need some example driven learning material for my "singular perturbation" class. Someone help me please.

After reading the math book and solving the math problems, I understand the material. So why attend math class, where after I read the book, I find so boring and unnecessary? Is it because going to math class makes it more likely that you will read your book and do your homework? I feel like...

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?