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General Math

- Math topics not applicable to the categories below. High-school Math
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Common math questions, quality answers.
Jul24-14 10:02 AM Greg Bernhardt 
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Test your skills. Math challenges will be posted at least once a week. Suggestions for problems are welcomed.
Aug5-14 02:05 PM fredoniahead 
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All math courses. PDFs, tutorials and web links.
Aug31-14 03:38 AM Yashbhatt 
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Jan16-12 Greg Bernhardt
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 39,008
Hello, I am 14.So entirely an amateur.Obviously, I do not want to fall into the, "I am a complete amatuer of your...
T 11:22 AM
willmac2
12 351
"Do we need math to understand nature or Do we need to understand nature to (create) math?" This was the topic I've...
T 08:49 AM
Fredrik
15 452
Hi all, I should start by saying I'm an amateur at mathematics so please excuse me if the question seems a bit...
T 05:52 AM
jbriggs444
2 117
can anyone recommend me a good text on OR that has a decent amount of questions, preferably with answers and even...
T 01:03 AM
maajdl
1 118
Hi, I've researched this problem all across the web and most answers involve finding the distance between two...
Y 02:34 PM
nixed
26 6,777
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Hi, My first post here, hope it goes well. I wonder if someone of you skilled persons could help me and my friend...
Y 08:56 AM
HallsofIvy
2 127
Hi, i am trying to model a triangle in a square cell based on its dimension. However, i have some problem with parts...
Aug31-14 08:32 PM
tomallan
0 141
In the picture below, the "abcdbea" trail is a dominating trail in the graph. ...
Aug31-14 03:07 PM
micromass
1 98
Hi Are these two graphs EQUAL to each other? http://www.mediafire.com/convkey/b422/87zw63kfl1067h17g.jpg ...
Aug31-14 03:01 PM
micromass
1 97
Maybe I'm plugging my website but I just finished writing a versatile cylinder calculator. If you know two...
Aug31-14 09:10 AM
jbriggs444
6 206
How does one convert a number like 0.01011001012 to a base-16 system? I know how to do for ex. 100011102, but the...
Aug30-14 02:26 PM
johann1301
7 150
Hi, What does N*m mean? What does N/m mean? What kWh mean? What kW/h mean? What does F=m*a mean?
Aug30-14 12:35 PM
thelema418
10 447
My first question is: is this formula (at the bottom) a known formula? In this subject i haven't explained how i...
Aug30-14 08:15 AM
H.B.
4 446
Also, is there a special term for the geometry typically taught in high school? And how does topology fit in here? ...
Aug29-14 08:46 PM
mathwonk
15 538
Suppose I have a function for a curve, for example y=x2. I want to find a function to "offsets" it by 2 units. That...
Aug28-14 11:49 PM
Simon Bridge
11 1,330
I am a 15 year old who is obsessed with math....anyway, I developed an equation dealing with safe combination...
Aug28-14 08:24 PM
willr12
3 153
We fix some N=1,2,3,\ldots, and define the factor group \mathbb{Z}_N as \mathbb{Z}/N\mathbb{Z}, and denote the...
Aug28-14 04:24 PM
Stephen Tashi
1 181
I know I can define a sequence on a set ##X## as a function ##a:T\rightarrow{}X##, where ##T## is a countable totally...
Aug28-14 10:29 AM
disregardthat
13 392
Hiya. I got to an interesting bit in a calculus book, but as usual I'm stumped by a (probably simple) algebraic...
Aug27-14 08:35 AM
Simon Bridge
6 228
Is the bottom half of an egg a hemisphere?
Aug27-14 05:58 AM
tleave2000
6 284
Draw this description out on a piece of paper if you would like. I cannot figure this out, it has been years since I...
Aug26-14 09:49 AM
getting2it
1 214
Hi, I'd like to know the log properties when they are the power of a constant. I've searched everywhere but I can't...
Aug26-14 04:54 AM
Mentallic
3 292
Lets say that "d" is diametr of a circly,and C is the perimetr(length). Why C/d = pi (3.14) is a constant?? I know...
Aug25-14 10:10 PM
thelema418
2 285
I kind of know what limits are, or at least believe I do: I think that a limit of a sequence is just an...
Aug25-14 06:50 PM
Korisnik
6 345
Guys, I have a problem I'm trying to solve for work (we're trying to inspect a hole, and I'm trying to determine...
Aug25-14 10:51 AM
SSWheels
5 1,176
Hey everyone I was thinking of something just now after watching a video. Every action has a risk of death some the...
Aug25-14 06:38 AM
HallsofIvy
22 650
I know what it means by by even, or odd, function. i also know what it means graphically. My question is how to...
Aug24-14 07:18 AM
HallsofIvy
1 262
Hi, I am wondering as to how to define the boundary condition for a shape in a unit cell. Just imagine that the...
Aug24-14 05:50 AM
disregardthat
2 220
So consider a function ##f(x)## which is continuous for all ##x## except on some finite interval, say ####. Imagine,...
Aug23-14 08:50 PM
pwsnafu
11 446
For certain types of functions I have been using the term 'general form' as a way of stating that some function of...
Aug21-14 10:39 PM
thelema418
7 315
Recently, I learned that, in a probability density function, the probability of the occurrence of any specific x-value...
Aug21-14 06:02 PM
mathman
7 395
It seems self-evident that mathematics must keep uncertainty at arms length. For example, to deal with probability...
Aug21-14 11:55 AM
Stephen Tashi
2 313
can anyone help explain the mechanism of coupled equation transformation and when and how can i transform similar...
Aug21-14 11:09 AM
Greg Bernhardt
1 275
How would someone go about writing a general expression for a function of a single variable and a constant? For...
Aug20-14 11:22 PM
Jorriss
15 456
"A set in the plane is called a region if it satisfies the following two conditions: 1. Each point of the set is the...
Aug20-14 01:49 PM
Nathanael
5 320
HI plz help me this could someone verify it for me plz find attachement clc; clear all; k=0; s=0; N=inf; for...
Aug19-14 03:27 PM
mathman
3 283
10 000 cubic km of water can cover all the continents with a layer 7 cm deep. Find the depth of the water layer if...
Aug17-14 10:08 AM
mfb
11 382
I need to write, "(k)1/2= a finite term recursive expression of 'k' where 'k' is the set of all Reals where 'k' is...
Aug17-14 09:24 AM
mesa
18 707
This problem came up after drawing a line on the spinning rotor of a food processor. I was idly musing about...
Aug17-14 09:06 AM
Simon Bridge
8 436

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