Class Definition and 942 Threads

  1. S

    Question in regards to class (statistic)

    Let's suppose i have a class of interval 7, say [20, 27[ With the numbers 20 21 22 23 24 25, there are 2 ways to derive the median yes? I may use [a+b[ /2 to get the median which in the case above will give me 23.5, or i may simply look at the numbers above and clearly see the median is...
  2. A

    MHB Why Do Class 1 Graphs Contain More Graphs Than Class 2?

    Vizing's theorem states that a graph can be edge-colored in either Δ or Δ+1 colors, where Δ is the maximum degree of the graph. A graph with edge chromatic number equal to Δ is known as a class 1 graph. A graph with edge chromatic number equal to Δ+1 is known as a class 2 graph. which one of...
  3. J

    A remove_duplicates() function in my linked list class: Is this right?

    I'm making a generic linked list class. For reference, firstNodePtr and lastNodePtr are pointers to the nodes at the beginning and end of the list. I'm trying to make a function that removes duplicate elements, which in turn calls a function for deleting a particular node. I think it does what I...
  4. T

    What is the class of this equation?

    Hi all, Please tell me the class of this equation, and if possible how to solve this kind of equations: \Deltau(\vec{r})=F(u(\vec{r}),\vec{r}) Thanks in advance.
  5. Math Amateur

    MHB Ideals of a Residue Class Ring- Ring Isomorphism

    I am reading R. Y. Sharp: Steps in Commutative Algebra. In Chapter 2: Ideals on page 32 we find Exercise 2.40 which reads as follows: ----------------------------------------------------------------------------------------------- Let I, J be ideals of the commutative ring R such that I...
  6. M

    Which math subjects are good for self-study and how should I go about it?

    Hi, I'm a Junior in high school. I just finished Calculus 3 (and got an A) last semester and I'm taking Differential Equations next semester. Also (if I get into this free math program), I will be taking Linear Algebra and Number Theory with Cryptology this summer. Anyways my question is what...
  7. nomadreid

    Morse-Kelley Class Comprehension axiom and Russell's paradox

    As I understand the ZFC solution to Russell's paradox, since {x|x\notinx} must be {x|x\notinx}\capS for some set S, the paradox goes away, but in Morse-Kelley, if I understand Class Comprehension correctly, although again there must be some M such that {x|x\notinx}\capM, this M may be a proper...
  8. Math Amateur

    MHB Residue Class Rings (Factor Rings) of Polynomials _ R Y Sharp

    I am reading R Y Sharp: Steps in Commutative Algebra. In Chapter 3 (Prime Ideals and Maximal Ideals) on page 44 we find Exercise 3.24 which reads as follows: ----------------------------------------------------------------------------- Show that the residue class ring S of the ring of...
  9. cryora

    Would like some advice on class schedule next semester (Chem vs CS)

    I am a community college student with one semester worth of classes away from transferring to a 4-year university as a Physics major. Currently, I'm enrolled in all the classes I need for transfer: Differential Equations - 5 units General Physics (Modern Physics) last of a 4 class series -...
  10. S

    Introduction to Scientific Simulation class?

    I'm not quite sure what this course will entail, but it sounds interesting as I've been very interested in simulations like this, albeit it is a math class (MA1600) and my question is mainly this: what exactly would a class like this entail? What are the usual languages used? I've been required...
  11. T

    Is an Intro to Logic Class Helpful for Transitioning into Higher Mathematics?

    Alright, so I will be registering for classes at my community college here in a few days and I am having a hard time deciding on classes. I am hoping to major in mathematics or physics (leaning toward pure math) and I hope to transfer to UC Berkeley (I have a 3.7 first semester) Some of the...
  12. skate_nerd

    MHB Describing an equivalence class?

    I am given that the relation ~ is defined on the set of real numbers by \(x\)~\(y\) iff \(x^2=y^2\). First part of the problem said to prove ~ is an equivalence relation, that wasn't bad. The second part asks to "Describe the equivalence classes". This just seems really vague to me. Is this a...
  13. A

    Which Class Should I Take: Upper Division ODE or PDE?

    I'm trying to decide between taking an ODE class or a PDE class next. I have already done Calculus 1,2,3 so I already know some ODEs and PDEs and linear algebra. I'm a 3rd year mathematics major with a minor in Statistics and I'm interested in applied mathematics.ODE course coverage: Ordinary...
  14. S

    English Class > Philosophy > to ask a why question

    I am giving a presentation on the principle of induction. I'll be showing how acoustic energy (sound) is converted into an electrical signal (via mic) & thus converted back into acoustic energy (via loudspeaker). Now I need to address the following, How & Why? How doesn't bother me. I can...
  15. R

    Struggling Math Major Seeks Advice on Passing Physics Class

    Hi all, I'm writing this post feeling very embarrassed because of the situation. So, here goes: I'm a math major at a well known school, and it is my last year (graduating early). I decided, to take introduction to physics because I wanted to see what else is out there. I'm currently in...
  16. mnb96

    Example of differentiable manifold of class C^1

    Hello, I read from several sources the statement that the set of points M\inℝ2 given by (t, \, |t|^2) is an example of differentiable manifold of class C1 but not C2. Is that true? To be honest, that statement does not convince me completely, because in order for M to be a manifold, we should...
  17. C

    What computer science class should I take for my math degree? C or C++?

    I need a computer science class for my math degree. Should I take intro to C or intro to C++ . I know nothing about programming.
  18. Pythagorean

    Higher social class predicts increased unethical behavior

    http://www.pnas.org/content/early/2012/02/21/1118373109.full.pdf
  19. T

    Schools Making sense of college class numbers?

    For instance, math 101 is beginning algebra, math 102 is intermediate, 103 is a reasoning course, 109 and 110 are both college algebra, but 109 comes with "modeling" and either are fine but one is preferred over the other. I just want math out of the way, and 109 is the only thing that fits my...
  20. Drakkith

    Should I Drop Spanish 101 Despite My Challenges and VA Benefits?

    So I'm currently taking 3 classes, one of which is Spanish 101, and I find myself on the verge of dropping it. I hate it. I loathe it. It feels like it's a mountain with no peak, and I'm just climbing forever. I can't seem to study more than a tiny bit because it's mind number memorization and I...
  21. L

    What Are the Post-Graduation Plans for the BA/BS Class of 2015?

    Thought I'd start a thread for those of us who'll graduate next year - it seems like most of the people who'll graduate this year have already figured out what they want to do after graduation. I'm not sure how many of us there are, but are people thinking about graduate school or going into...
  22. M

    I Need To Interview a Computer Engineer for My Engineering Class

    Homework Statement Hi, I am currently a high school freshman enrolled in an Engineering program for the next 4 years. I applied for this program because I've been fascinated by Science and Technology for practically my whole life. There isn't a day that goes by where I don't use some sort of...
  23. Hercuflea

    Stuck Between Research Project & Class: What Do I Do?

    So I have a crazy professor in my numerical analysis class currently who is giving us assignments which have taken anywhere from 10-40 hours each to complete. I also am taking exclusively math and physics classes and I have a research project I am working on which takes a minimum of 6 hours a...
  24. Dohbis

    Skipping class because it is just so dull

    I am only passionate about Physics. How do I make it through the common core, without dulling creative thinking? To give you an example I am currently skipping class because it is just so dull. Help me please *High school*
  25. M

    Problem from discrete math class

    How would I go about solving this? We are starting to learn about venn diagrams so would creating a venn diagram be helpful? This is what I tried so far, I created a set C consisting of all people who have taken calculus and a set D consisting of all people who have taken discrete math...
  26. M

    Calc 2, Linear Algbera, PHY 1, Design class and Gen Chem 2, bad idea?

    University physics with lab general chemistry 2 with lab Design class linear Algebra Culculs 2. Does this look like an overload? At times it feels like it is and at times it feels like it can be done. the mechanics course and the general chemistry course both come with labs which is the...
  27. P

    Help on a project for Physics class. Already have one idea

    Homework Statement So basically I have a project where I have to basically make a vehicle that can tow 2 objects and across a 30ft fishing line. The line will be pulled tightly. After we've demonstrated our vehicle's ability to go 30ft, the line will be angled at a slight incline. Definitely...
  28. A

    Choosing an Extra Class for UG Physics

    Hi. I am going to start my 2nd year of undergraduate Physics this month. Here at my Uni you can apply, for no extra charge, to one extra class per semester, in any field of study. I regret I didn't do it last year, cause I was lazy, but now I really want to. Thing is, I have no idea what to...
  29. U

    Help understanding class content and keeping up

    This may be the wrong section , but I figure it was education relevant. In class I can't always keep up with the current lecture, but then when it starts incorporating previous lectures and the principles I can find it even harder to keep up. I notice some students can start to piece it...
  30. P

    Bizarre incident today in the class I was teaching

    Hopefully this is the correct stack exchange for this, if not feel free to tell me where to move it where it would be more appropriate. So I am a teaching assistant and masters student in the math dept. at a large state university. I was holding a discussion section this morning for the...
  31. D

    Not allowed to take a graduate class

    I am an undergraduate math student. This fall, I wanted to enroll into a grad class. I have all the necessary math background to enroll (according to instructor). But last night, I got an email from him saying "He [I] was told that only graduate students can register" This ruined my day...
  32. A

    This Freshman Math Class at Harvard Looks Insane

    If this is the wrong forum for this, I apologize. I tried to narrow this question to the right section. I somehow ended up on a Harvard undergraduate maths webpage for incoming freshman. The first two courses I read were pretty gnarly but I have read enough posts on this website throughout...
  33. C

    Comp Sci How can I fix errors in my Java Complex Number Class Homework?

    Homework Statement Create a class which contains the following: a)instance variables for the complex number. For x+yi, x and y are the variables. b)constructor to initialize these variables. c)methods to return the real and imaginary parts of the complex number d)method to compute the...
  34. 462chevelle

    Tips for Writing English Comp 1 Essays

    im taking English comp 1 and I absolutely suck at writing essays regarding to subjects that I don't care about. like. I had to write an essay about if I had 1 million dollars to give to someone or something other than family what would I do with it. I think my score on that test was a 56. I just...
  35. G

    Post Your Summer/Fall 2013 Class Schedules

    Post Your Summer/Fall 2013 Class Schedules! 1)Introduction to probability. 2)Thermodynamics 3)Electricity and Magnetism 4)Complex analysis 5)Mathematical physics
  36. T

    Can Passing a College Math Class Be Achieved with Help and Patience?

    Thanks to the help I partially got here I have finally passed a college level math class. It feels rather good to know it can be done. Thanks to the people who were patient with my questions.
  37. P

    Which Course to Choose: FPGA with VHDL or Control Systems Design?

    Hello folks, I am having hard time to decide which class to take in my senior year. I have two choices: Embedded Systems with primary focus on FPGA and VHDL and another class is Control Systems design. I like both of them, but the problem is that they are offered almost at the same time, so I...
  38. F

    Admissions Influence of undergraduate class rank on gradute admission

    I'm currently a Computer Engineering undergraduate student at the State University of Campinas (Brazil), and according to Times Higher Education World University Rankings, my university is ranked second best in Latin America. I'm considering to pursue a graduate level education on a top-tier...
  39. A

    Has Anyone Taken a Three Hours Mathematics Class at Night

    Will it be hard to take calculus I at Night during three hours from 6 to 8:45?
  40. M

    To take Intro physics class or not to take intro physics class

    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...
  41. S

    Python Python: modifying class from an inside function

    I feel very stupid right now. Should be an easy question, but I googled it to no avail. Basically, I have an class.object in my code which should be managed by a class.function For example, I want the following code: class Z: a=0 def mod(self): self.a=self.a+1...
  42. G

    Should I Take Diff. Eq's, Linear Algebra, and Physics Waves in One Quarter?

    I currently attend a quarter based college in Washington. My adviser suggested taking Diff. Eq's, Linear Algebra, and Physics Waves and Lab in one quarter. Would this be a good idea or not? I am smart, but not a Sheldon Cooper lol. Any advice would be much appreciated!
  43. M

    Taking QUALITY Physics/Maths notes in and out of class?

    Here are my problems I'm experiencing, I'm sure my note taking is very relative to the fact that I have to study 6-8 hours a day to keep up (Or more!) I was wondering if anybody has any tips to improve efficiency and effectiveness of my note taking so that I can spend less time trying to...
  44. Astrum

    Learn from My Mistake: What to Do When You Forgot to Drop a Class

    Forgot to Drop a Class... I went to a CC (two actually, at the same time), and I had signed up for an online English class, and had thought I dropped it, and I apparently didn't. I've got no idea, I'm going to have to talk to a counselor on Monday, since that is the last day of classes (grades...
  45. M

    Circuits class textbook recommedations?

    Can anyone recommend a circuits book? And I have never taken a circuits class. The textbook that my school is reading from is Basic Engineering Circuit Analysis by J. David Irwin. https://www.amazon.com/dp/B005FHLIP4/?tag=pfamazon01-20 However the book did not get good reviews so I want...
  46. A

    Summing X_i with Binomial Distribution: What is the Problem?

    What kind of problem is this? X_i \textrm{are iid with known mean and variance, } \mu \textrm{ and } \sigma ^2 \textrm{respectively. } m \sim \textrm{Binomial(n,p), n is known.} S = \sum^{m}_{i=1} X_i How do I work with this? This what I have thought of. S = \sum^{m}_{i=1} X_i =...
  47. J

    Which class to take - geohydrology, GIS or geomorphology

    i'm a sophomore in university, declared geology major last semester, took the 2 100-level pre-reqs (historical geology and intro to physical geology). i'm going to take one geology course this semester. I am relatively new to geology. which would be better for me of the three: geohydrology...
  48. K

    Should I Take a Grad Class as a Senior?

    Hi everyone, I'm trying to decide on classes for my senior year and I am not sure if it is worth it to take a grad class or not. I have completed all but one of the important physics undergrad courses. I will be applying to grad schools next winter Here are the option's I have: 1. Finish...
  49. S

    Doing bad in math class, what do I do?

    I'm taking Stochastic Processes this semester, and I started off doing poorly. I have tried picking up the pace and working harder ( I slacked off slightly in the beginning), and I am doing better on quizzes but I had my second exam today and don't think I did well at all. I did bad on the first...
  50. R

    How do I show that a function defined by an integral is of class C1?

    Homework Statement F(x)=\int^{2x}_1\frac{e^{xy}\cos y}{y}dy Show that F is of class C^1, and compute the derivative F′(x). Homework Equations Thm: Suppose S and T are compact subsets of \mathbb{R}^n \text{ and } \mathbb{R}^m, respectively, and S is measurable. if f(\bf{x,y}) is...
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