What's a good freeware latex editor?
I've been trying to install LEd, but it's not going smoothly, so I don't want...

Feb1514 11:29 AM
FrankFerrese

25 
65,373 
What are the advantages and disadvantages of MATHCAD, MATLAB, maple and mathematica?
Which one do you use, and why?

Nov1213 01:21 PM
Pythagorean

48 
116,611 
What is this?:This is a list that contains hotkeys and short cuts designed to make your time writing equations in...

Oct1712 06:24 PM
Gertlex

17 
177,841 
Thus spake Oz <Oz@farmeroz.port995.com>
>John Baez <baez@math.removethis.ucr.andthis.edu> writes
>>18) Ring around a...

Jan2606 06:28 PM
Charles Francis

0 
729 
The following item was reported by tinytim : Click here. He has given the following reason:

May1808 05:49 PM
cristo

6 
729 
I'm interested in a lot of science involving ODEs, PDEs, and discrete functions of up to 4 dimensions (one of time)....

Mar3112 03:34 PM
djelovin

1 
729 
I have plotted lots of 2D pictureswhich is g(y) towards y at each fixed value of F. Now, what I am trying to do is...

Oct2010 11:56 PM
charleslc

0 
730 
Hi,
Hopefully someone can help. I was some pretty simple code to make a HR Diagram in wxMaxima. The Absolute...

Jul1512 03:42 AM
mzu

0 
730 
I am developing a matlab code for the problem.
I have a idea but would like to improve it and therefore would want...

Jan2809 04:58 PM
mXSCNT

1 
732 
Hello ,
I need to solve this differential system with Scilab and I don't know how to do it.
The system is...

Jun1011 06:39 AM
Nesrine

0 
732 
ok I am modelling airflow in the upper airway for application i obstructive sleep apnoea, but I have hit a brick wall...

Jan713 10:57 AM
01af

0 
732 
m = size(X,dim) returns the size of the dimension of X specified by scalar dim.
I don't understand function 'Size',...

Dec210 05:46 PM
nbo10

2 
733 
Hey there PF.
I wanted to ask here if someone had any input as to why a tiny part of my code is "slow".
I have...

May1412 11:54 PM
Inve

0 
733 
Hi, all.
I'm interested in plotting the following function:
f(y)=\left\{\begin{array}{ll}y,&0<y<1\\\\2y,&1\leq...

Oct909 10:53 AM
hatsoff

0 
735 
I found this code on my computer a while ago, and I want to adjust the algorithm so that I can have a zero pivot,...

Jun710 09:52 PM
Bill Simpson

1 
735 
Need help urgent...Well I know how to plot the solution of a set of differential equations, but in order to analyze...

Dec908 06:23 PM
cdrueda

0 
736 
FromDigits /@ Permutations, {4}]
MapThread]]
MapThread]] &, {4}]]
Expression 1 and 2 work, so why not 3???
...

Jul2511 05:29 PM
martix

2 
736 
Hi everyone, my code is a little rusty and a work in progress but I was wondering how I would go about producing...

Oct812 07:45 AM
Liffner

2 
736 
In:= 2 Log === Log
Out= False
Why? Seems basic enough, it should find it.
In:= Simplify]
Out= Log

Sep2312 11:33 AM
Bill Simpson

3 
737 
Hey.
If you want to reference a box in excel, what's the command?
I thought it was $E5$ but that doesn't work.
...

Dec3009 10:33 PM
Nusc

2 
738 
Hi all
I'm new to scilab. I was given an assignment to use scilab to draw a 3D surface. It needs to be creative and...

Oct1710 12:21 AM
Pythagorean

1 
738 
I am solving three nonlinear equations in three variables (H0D,H0S and H1S) using FindRoot. In addition to the three...

Jan2512 12:27 PM
NRedacted

0 
738 
Hello, guys
Hey guys,
Got stuck with function integration using Simpson's rule and need your help.
Please...

Feb2813 03:50 AM
Ein Krieger

7 
738 
I planned to buy a latex book..
a complete latex book with examples.. from introduction to advanced level
any...

Mar910 11:26 AM
matonski

1 
739 
Hi,
Iam looking for a specific command(s) that could give outputs which are determinate only, i.e. only and only if...

May811 10:00 PM
SredniVashtar

1 
739 
How can I fourier serie of a twovariables function in matlab?

Mar512 06:08 AM
matinking

0 
739 
The goal is to plot both the surface graph of the function and the tangent plane to the surface on one plot. There are...

Sep2012 01:58 PM
billyd690

2 
739 
Ralph Hartley wrote:
>There is no problem defining the group valued momentum for a particle,
>as long as you...

Jun1306 04:00 AM
Ralph Hartley

1 
740 
Also available as http://math.ucr.edu/home/baez/week225.html
December 24, 2005
This Week's Finds in Mathematical...

Nov406 03:22 PM
Michael Murray

1 
740 
I have tried mathematica, and it says it lacks the means to solve it:
The function
g6_{\mu,\sigma}
represents...

Jul1811 11:01 PM
wil3

4 
740 
I'm not very familiar with matlab, trying to learn it little by little by watching some tutorials. However to be able...

Jan1312 05:05 PM
mikeph

1 
740 
I have a function of two variables
f=x^2+y;
d=Take,0,10],2];
now i want to repeat this process by changing...

May512 12:38 AM
Hepth

4 
740 
The chrome extension GmailTeX allows one to render TeX in messages received, or live as you compose a message. This...

Aug812 03:45 PM
imurme8

0 
740 
I have the following sample of measurements "V" and each has error "E" incorporated in the measurement. If I want to...

Sep2412 10:39 PM
karna87

2 
740 
The academics and the technicians of a university faculty are planning a paintball battle and the mathematicians are...

Jan613 03:13 PM
haruspex

1 
741 
PSI is a (not really interpolation) method of constructing a joint histogram of two images' intensities.
I am trying...

Dec2412 11:26 AM
atrus_ovis

0 
742 
Dear,
I want to preview the designed area or volume in comsol whan I simulate the multiphases model. Does anyone...

Nov710 11:41 PM
nchuche

0 
743 
I'm trying to become as proficient as possible with MATLAB. As a test of proficiency, could someone give me a tough...

May311 11:53 PM
Jamin2112

2 
743 
Anyone knows how to write ListConvolve from Mathematica in Matlab?

Jul212 03:30 PM
RYYJDEH

0 
744 
Hello, how can I solve with Maxima an exponential inequation like 4^x  2 < 0 ? it doesn't output the solution

Jan1513 11:05 AM
scientifico

0 
744 
Programming in matlab. I have everything entered correctly, I just need help with iterating.
The program is...

Apr2512 09:35 PM
tactical

0 
745 
Whilst browsing through the website, I stumbled across this thread:...

Jun112 12:39 PM
NemoReally

0 
745 
I'm trying to execute the following command:
Assuming]]
I expect it to spit out
\sqrt{1+t^2g^2},

Aug712 06:02 PM
Bill Simpson

2 
745 