Register to Post Thread

General Math

- Math topics not applicable to the categories below. High-school Math
RSS Feed Icon
New Posts
Common math questions, quality answers.
Jul24-14 10:02 AM Greg Bernhardt 
New Posts
Test your skills. Math challenges will be posted at least once a week. Suggestions for problems are welcomed. Brought to you by Office_Shredder.
Jul26-14 11:48 AM jostpuur 
Meta Thread / Thread Starter Last Post Replies Views
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 37,829
I've been having a little "problem" with the concept of equivalent mathematical statements. As far as I can tell,...
Jul10-04 01:15 PM
Galileo
3 6,519
I'm trying to find the papers where a rather dramatic result on billiard systems was proved: for 'typical'...
Nov21-08 05:47 PM
Doodle Bob
1 972
*Note: I think questions 2-4 are erroneous? 1) There does NOT exist any x \in \mathbb{R} such that x \in \left(...
Sep10-05 10:40 AM
hypermorphism
6 1,812
given that a=(6.0+/-0.1) and b=(17.5+/-0.3) what is 2a^2 + b^2 i'm having so much trouble with this i think we...
Sep20-07 12:14 PM
Diffy
6 2,960
I think this is probably the right place to put it, didn't really fit anywhere else. I've got the joyless task of...
Apr20-12 01:21 PM
Fluorescent
0 1,141
Suppose I have some measures of certain physical magnitude "I" between the range x=x1 and x=x2. I have for each x...
Oct22-03 01:55 PM
HallsofIvy
1 2,540
Hello yall im new here. Im a first year student in engineering. I'm writing up a lab now and im supposed to be...
Sep12-10 12:55 PM
OpticalSuit
2 1,148
Hello, I have a question about error detection. Senario: One person can see two coins. Each coin could be...
Oct7-03 02:28 PM
wubie
1 1,542
Hello! don t understant the question. Calculate the error function for f(x)=tan(x), for linear, quadratic and...
Nov2-11 09:58 AM
jackmell
5 1,356
I would like to know how the following integral for the error function gets derived (found by following the link): ...
Nov2-11 04:04 AM
JJacquelin
7 1,661
For a matrix , Is there anyway to calculate the Error function of matrix or Erf ? Any possible solution to...
Mar20-11 02:18 PM
Stephen Tashi
5 1,342
On project Eureka the following problem was posted: You and a friend like running, but your friend is much faster...
May17-12 06:28 PM
Bagbo
3 884
I have an equation that I've been trying to solve. I manipulated it until I had a=f(d) and then did by best to put it...
Jul28-12 08:06 PM
haruspex
4 993
Hi i found this "error" in my text book in series. ...
Mar11-07 06:56 AM
matt grime
12 1,820
A highway and a train track run parallel to each other. At 5:00 a train crosses a river. Fifteen minutes later, a car,...
Jan19-08 09:07 PM
Holocene
4 1,649
could find input index file that's one error that shows up I have no idea how to fix it.
Apr9-07 09:36 AM
Hootenanny
3 2,852
http://img.photobucket.com/albums/v224/TurbineSpeed/Picture402884.jpg Isn't it true that the "y" does NOT belong...
Nov22-07 11:33 PM
stewartcs
3 1,557
Hi, For an experiment I have a value for the error in time t (s) to be +-0.13s but I'm having difficulty getting...
Apr5-11 01:10 AM
kwah
2 2,506
In chapter 5 of Young/Freedman's University Physics, 13th ed., Eq. 5.10 is given as: ##v_{y} = v_{t}(1 -...
Aug10-12 04:30 PM
SiennaTheGr8
8 1,125
Always the easy things we forget... I know how errors propogate through multiplication or division when every term...
Sep28-04 06:46 AM
HallsofIvy
1 2,470
Recently I came across an example for working out error propagation, and I'm having trouble following the steps: A...
Jan20-10 10:57 AM
elibj123
3 1,880
I am doing a calculation involving taking three or more temperature measurements and then plotting them against...
Jul14-09 07:38 PM
refrigerator
2 2,569
Hi, I am trying to represent my data in log2 form rather than "fold change" and I am embarrassed to say I can't...
Jun6-09 09:10 PM
dipluso
1 4,313
Hi, I've been trying to reproduce the output of an analytical machine here at work by doing the calculation...
Mar24-08 08:38 PM
dipluso
3 1,253
Not sure if this is the right section to post this.. I have 3 measurements and was trying to take the average of the...
Oct20-11 05:54 PM
davidp92
0 562
if given two points each with different x and y coordinates, what is the best way to define the error between these...
Jul12-07 01:24 PM
matt grime
4 980
Anyone attended maths seminars where the speaker made a genuine mistake as opposed to a typo or slip of the tongue? ...
Nov25-08 02:07 AM
tgt
0 1,138
Hi everyone, Let's say a simulation outputs a range of estimates with various accuracy level, ranging from 30% to...
Apr29-12 07:18 PM
lost&found
0 1,431
I have two triangles in 3d. I need to calculate transformation matrix(3X3) between two triangles in 3D. 1)How can I...
Jun15-12 08:16 PM
haruspex
3 1,616
Hey guys, I was posed an interesting problem which relates to upsizing quantum physics, that boils down to a math...
Sep14-11 03:48 AM
lurflurf
1 868
I made a cannon for physics in school, and now I'm having problems proving its actual muzzle velocity mathematically,...
May5-08 01:53 PM
grille
0 2,448
I am at a school where you have to work at your own pace and if you don't finish, you have to continue the course next...
Aug11-03 06:33 AM
plus
2 13,275
How can I estimate the value of sqrt. of a particular no. which is not a perfect square(e.g. 125) without using the...
Jan13-05 10:03 PM
BobG
11 3,705
I wanted to know if there are any rules for interpreting mathematical expressions. If we succeed in interpreting a...
Dec10-11 02:07 PM
micromass
1 774
John Nash proved you have to think not only about yourself. Is possible to prove that people should be ethical...
Dec19-04 10:55 PM
Bob3141592
3 3,193
Hi All, I'm hoping I can find some help to solve a puzzle that came up last night with friends. I thought I could...
Mar22-12 11:19 PM
rcgldr
3 2,308
please suggest what books should I do to strong my concepts in eucleodian geometry (ELEMENTARY & PRE COLLEGE LEVEL)?...
May31-12 09:59 PM
Vargo
10 1,765
I am taking the Euclid contest and I have to say, from what I've seen the last two numbers or so tend to be impossibly...
Mar25-07 11:25 AM
Ilsa
6 4,792
I'm having trouble understanding why Euclids Elements is so scarce in introductory Geometry classes. I don't remember...
Jun16-08 09:27 PM
LukeD
2 1,462
Near the end of Euclid's proof he says that if you multiply all our known primes from 2 to Pn and then add 1 to it,...
May26-09 06:20 PM
qntty
7 1,908

Register to Post Thread
Bookmark and Share

Display Options for General Math Mentors
Showing threads 4041 to 4080 of 15180 Mentors : 2
 
Forum Tools Search this Forum
Search this Forum :
 
Advanced Search