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Jun1-13 07:36 PM Fredrik

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Mar10-14 04:45 PM mfb

# General Math

- Math topics not applicable to the categories below. High-school Math
 Meta Thread / Thread Starter Last Post Replies Views Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions... Feb23-13 09:23 AM micromass 1 33,193 Can anyone give me a good definition of Euler's number and its significance. I see it everywhere, it's prolific in... T 08:05 AM micromass 6 132 Is possible to rewrite the quadratic, cubic and quartic determinant in terms of matrices and matrix operations (trace... T 12:37 AM micromass 4 181 - - - A periodic function is one that ##f(\theta) = f(\theta + nT)##, by definition. However, the argument ##\theta## can be... Y 09:38 PM gopher_p 1 82 Why variables (RHS) in directly proportionality are always multiplied. Suppose the newton 2nd law ... Y 07:34 PM chogg 17 234 I'm writing a piece of code and I want to simplify a bunch of if/else statements. I need... Y 04:31 PM AlephZero 15 275 Why do I feel like I am about to be fed to a pack of hungry wolves? I take it as a foregone conclusion that anyone who... Y 03:31 PM FactChecker 11 273 Let M=Men, D=Days, H=Hours, η=efficiency, W=Work ##MDH \propto W## ##MDH = kW## ## \frac {MDH}{W} = k## ... Y 10:58 AM micromass 10 237 Commonly I see ##\sin(\omega t + k x)## I ask myself, if ωt is equal to θ thus kx is equal to what?? Also, the... Apr18-14 11:02 PM Jhenrique 10 285 Whenever I'm on math class I've noticed that often professors, and in my online class the videos and examples all seem... Apr18-14 03:27 PM micromass 5 142 Given Cartesian (x,y,z), Spherical (r,\theta,\phi) and parabolic (\varepsilon , \eta , \phi ), where \varepsilon =... Apr18-14 04:22 AM bolbteppa 0 114 Hello. So, I am building a camera and have ran into a problem that I feel could be solved with a semi-simple... Apr17-14 12:59 PM Zippie 6 200 I have been wondering: Given an arbitrary geometric shape is there a sequence of tests I can perform on individual... Apr17-14 11:35 AM disregardthat 7 958 In my previous two math classes I'd get the answer wrong if I put the number first then the variable as my answer. Now... Apr16-14 11:48 PM Tyrion101 18 361 Hello, this isn't a homework problem, so i'm hoping it's okay to post here. I would like to know the correct way... Apr16-14 09:02 AM Mark44 5 208 Guys, I may need your help. There is a question saying that how to solve the cubic function in general form, which... Apr16-14 05:56 AM disregardthat 4 272 I was studying the dot product, and it says that (a.b).c makes no sense. so if you do (a.b) can = to β and then is... Apr16-14 05:46 AM HomogenousCow 8 255 Who may help me with this question? Thanks. Log10(x)^log10(log10X)=10000 Apr15-14 07:43 PM Mark44 3 183 This thread does justice to a question put forth online several times and, as far as I can tell is only answered in... Apr15-14 10:44 AM DavidHume 8 219 If ##y=x^4##, so x is equal to ##\pm \sqrt{y}## or x is equal to ##\pm \sqrt{\pm \sqrt{y}}## ? Well, I think that x... Apr15-14 09:54 AM Mark44 5 234 If I want to discuss Black–Scholes formula, where should I post? Apr14-14 11:52 PM AMenendez 1 190 Ok! So I know Newton and Leibniz invented Calculus independently and today a major part of maths requires calculus.... Apr14-14 12:54 PM Giant 16 690 Hello may i know when to dot product and cross product?? both look to same to me.. Apr14-14 10:51 AM berkeman 2 232 It's been a while since I've dealt with sequences and series. Here is my explanation of sequences and series and let... Apr14-14 09:44 AM disregardthat 5 290 Guys, waterloo contest is coming in next week, do you guys prepare for it? Apr13-14 06:17 PM jedishrfu 1 188 Is correct the following procediment? ## A \sin (\omega t) = A \sin (\phi) \to \phi= \sin^{-1} \sin (\omega t )## ... Apr13-14 03:50 PM HallsofIvy 2 228 just a quick question. why is two prime if its has factors, (1+i) and (1-i)? Apr13-14 01:13 PM SteamKing 8 276 Hi, My Complex Euler stuff is a bit rusty but I'm working on a problem (that I won't mention here) but I'm after an... Apr13-14 05:18 AM tim9000 12 288 Does anyone know any cheap (preferably free) software or online tools for plotting reasonably complicated Cartesian... Apr13-14 04:00 AM Martin Zhao 5 238 Let's say A and B are 2 vectors with length in cm and the angle between them is 170°. Obviously, the dot product of... Apr12-14 10:21 AM EmSeeSquared 2 229 I am having a hard time understanding the concepts of a universal property :\ What are they used for? Do they... Apr12-14 09:48 AM micromass 16 442 It is basically a question in computer graphics but I guess math sub-forum will suit this question. While rotating... Apr12-14 12:04 AM Stephen Tashi 3 263 What does the Fc and Vc stand for in this equation? Fc = Vc over Wavelength Apr11-14 05:11 PM SteamKing 1 217 In my textbook, it states that given q1 and q2 where both charges are positive and of equal magnitude, the unit vector... Apr11-14 01:31 PM Doc Al 20 421 If we have a function such as, $$e=\sum_{n=0}^{\infty} f(k)$$ Where 'k' can be (almost) any real value we choose... Apr11-14 12:06 PM mesa 27 1,212 Is it possible to create a solid whose sides are all quadrilaterals, and whose vertices are all bringing together four... Apr10-14 09:35 PM AlephZero 1 252 Digging in the wiki, I found this relation between 'arc-functions' and 'arc-functions-hyperbolics" \\ arcsinh(x)= i... Apr10-14 03:32 PM Jhenrique 11 530 Is possible to compute the rate of change of x wrt sin(x)? ##\frac{dx}{d \sin(x)}## Apr10-14 11:40 AM 1MileCrash 11 413 So i have an equation to calculate the impossibility of pair production during photon decay into two electrons and I'm... Apr10-14 08:39 AM HallsofIvy 1 221 Why is the slope of perpendicular line on the the other defined this way: m = slope of a particular line m'= slope... Apr9-14 08:36 AM Simon Bridge 4 260