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General Math

- Math topics not applicable to the categories below. High-school Math
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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 33,247
http://www.geocities.com/dr_physica/moa.zip is a delphi program showing how my method of approxim outperforms/beats...
Apr25-03 03:10 PM
Sting
4 3,460
What the heck is the door code? http://www.physicsforums.com/attachment.php?attachmentid=53382&stc=1&d=1353982142
Nov27-12 02:06 AM
Borek
8 912
I wrote the function y^50=x^2-5x-9. I found a large gap between the function from the x-axis to the end of the curve....
Jun12-07 08:15 AM
uart
10 1,634
I dropped out of Grade 13 (aka OAC) in Ontario a few years ago--leaving school with a grade 12 diploma and no math...
Jul23-04 12:07 PM
singleton
6 1,612
where X ~ N (μ, σ2) I know that if X is random variable, the first central moment E(X-E(X)) = E(X-μ) is zero. But I...
Mar28-08 05:53 PM
quadraphonics
1 1,360
In response to the below quote I have written this. The idea that arguing is "spreading misinformation" is ridiculous...
Mar29-11 04:46 PM
HallsofIvy
109 11,264
as concept in http://home.comcast.net/~lcopes/SciMathMN/concepts/concepts.html k-regular bipartite graph is a graph...
Apr22-04 02:45 AM
abcit
0 3,717
I was wondering whether a sequence like x_n=n\sin n converges* to infinity or diverges. I'm pretty sure it goes...
Jun22-11 07:53 AM
HallsofIvy
9 861
I want an intuitive understanding of why the lowest common multiple of two numbers is equal to the two numbers...
Jan6-10 01:24 PM
Juwane
14 4,666
To what length do you have to know Algebra in order to begin teaching yourself the basics of Calculus? How much...
Mar23-03 01:04 PM
Sting
10 15,553
If you have not read my previous threads, you should know I am in 8th grade. For one, I have been wanting to do this...
Nov9-10 10:39 PM
bpet
7 5,330
I want to measure salt brines. I can measure specific gravity and degrees Fahrenheit. I need a formula that I can...
Sep5-08 06:47 AM
Borek
3 1,659
I'm a math/physics major, and I just finished my freshman year of college. I have almost 4 months off, so I decided...
May14-05 01:41 PM
Crosson
7 3,350
I am able to use a variety of methods to check to see if a series converges, and I can do it well. However, it's not...
Dec4-11 09:08 PM
chiro
2 953
I have disocovered a formula for Pi(x) function in number theory...where could i send it?..in fact i thinks there was...
Jul6-03 08:33 AM
selfAdjoint
11 10,138
I am starting imaginary numbers in school and I wondered, what is x=ii
Jun25-03 04:40 PM
Lonewolf
6 8,228
I should say that I've never really try to "prove" many math theorems from my own point of view. Usually, I will just...
Aug29-11 08:31 AM
jambaugh
1 934
So there are three guys fresh out of college who want to save money, so they decide to rent a room. The room costs 30...
Jan19-07 01:37 PM
cristo
7 1,488
I think there is some thing wrong in this exercise which I met by chance in a book of Calculus and analysis while...
Jan20-12 10:34 AM
MIB
4 1,193
I think it's my ignorance of not accepting that I can't do it, because I'm almost certain that it cannot be done, yet...
Dec26-09 10:50 AM
Gerenuk
1 820
Hello, I know the stuff about how trisecting angles using only a compass and straightedge is impossible. So then...
Oct12-07 11:12 PM
111111
5 1,533
21 is on, you know the old situation where you're given three choices, you make your choice, then one of the incorrect...
May15-11 10:58 PM
yenchin
9 1,740
hey guys, I'm new here but whatever, who cares. ANYWAYS, I have this math question on hybrid functions. I...
Mar4-05 04:45 AM
lilsheltie
12 1,485
Anyways I always thought this story was cute, but I was wondering how you would solve the math problem?...
Nov4-12 07:09 PM
lurflurf
2 940
I saw somewhere triple line integrals, 3 integrals with a circle(the symbol) , may you tell me exactly what are...
Aug29-09 04:52 PM
LSE1234
5 1,712
Okay, so... I'm not sure this is even the proper place to post this, but I do know this is the proper place to...
Nov22-12 12:48 PM
mfb
1 888
Hey! Can anybody help me with this???? I need to simply the following expression: (x^4 + x^2y^2 + y^4)/(x^2 -...
Jul3-06 09:27 PM
Hurkyl
5 961
I know this is an old topic discused someway in my post before..but i would like to open a general topic about this...
Apr12-06 11:43 AM
matt grime
21 3,955
Hi all, For a project, I need to learn what quaternions are, and how they are used and manipulated. All I've had in...
Oct3-03 07:45 PM
chroot
6 1,553
Hi everyone. Let me start by saying that my math is quite rusty to say the least. I got through high school math...
Oct4-05 06:22 PM
Ouabache
4 1,410
Hello, as the title says anyone have suggestions for a good, easy to understand textbook for AP Calculus??? Thanks...
Jul4-06 08:08 PM
Tensaiga
0 3,499
Hi, I just need a little help in getting some sums. Can anyone of you give me a site where I can find sums in Log...
Feb23-06 12:22 PM
arildno
5 996
I need some help with these two questions: tan2A=cot40(40degrees) and cosec^2x=1
Oct12-04 06:23 AM
omicron
8 1,335
At the 2:00 time mark of this video... http://www.youtube.com/watch?v=hc7jIg7j544 ...there's as formula that we're...
Jan18-11 01:55 PM
Cosmored
53 1,645
Hi every body , I had alot of equations to solve yesterday becouse that i was preparing my self for my exam this...
Oct4-09 05:46 PM
tiny-tim
3 725
Hi guys! I have the most irritating problem. :grumpy: I'm studying correspondence and need to submit assignments...
Mar7-06 01:54 AM
waimang
14 14,019
Can anybody give me the name of a few web sites that have all the mathamaticle sybols and terms as well as what those...
Feb23-05 12:15 AM
Crosson
8 1,261
I invented a number system in 2008 and I've never shared it with the public I thought I might as well...I had my...
Dec24-11 07:25 AM
micromass
24 2,742
I am taking physics for the first time and I am taking it online which probably isnt the smartest way to go...but to...
Jul2-10 08:47 PM
rock.freak667
4 1,508
1/a+h+9 - 1/a+9 divide by h This is a function and I suppose to calculate the value. But im stuck. Thanks for your...
Sep16-03 11:39 AM
HallsofIvy
7 2,208

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