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Jan16-12 Greg Bernhardt
What are the advantages and disadvantages of MATHCAD, MATLAB, maple and mathematica? Which one do you use, and why?
Jul22-14 10:36 AM
49 128,935
editor, latex Sticky Thread Pinned: Best Latex Editor? ( 1 2)
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...
Jun7-14 08:10 AM
26 72,801
What is this?:This is a list that contains hotkeys and short cuts designed to make your time writing equations in...
Oct17-12 06:24 PM
17 196,773
Hi, I'm trying to write a code for the recursive trapezoidal rule. The code must have the bounds of integration and...
Y 08:05 AM
1 155
I have a question about silvaco athena && atlas simulation, MOS structure, when I gate length is 0.6um, get Vth is...
Aug22-14 11:06 AM
1 1,717
Hello all, I was wondering how to make that nice looking Complex 'C' when writing a set in Latex. For example,...
Aug18-14 09:02 PM
5 247
Hi! I'm trying to compute air flow between chambers for a project. I'm having a numerical oscillation problem,...
Aug17-14 07:41 AM
2 1,335
Can I prevent setting up standing waves in my COMSOL model? I'm using integration over two opposing faces to get...
Aug12-14 04:04 PM
0 204
I have a model set up, that is a cuboid, with a membrane half-way along - a bit like an impedance tube setup. I've...
Aug12-14 02:38 AM
0 251
does anyone know sample codes with explanation on computing Geographically Weighted Regression using MATLAB?I am a...
Aug11-14 07:51 AM
1 310
I've just got a quick question that hopefully someone can answer. My question is - why does the membrane in COMSOL...
Aug11-14 01:50 AM
2 313
I have an ODE ##e^{2x}H(Hv'(x) + H'v' + Hv'') + (k^2 - 2e^{2x}H^2(1 + \frac{H'}{2H}))v = 0## where ##H(x)## is a known...
Aug10-14 10:11 PM
Greg Bernhardt
1 605
Is there a software(preferably free) that can fit data into a 4 parameter equation? like the generalised logistic...
Aug9-14 11:37 AM
3 300
Hello, this block of code was given on a previous exam M = ; temp = 0; for k = M temp = temp + k(2) end...
Aug9-14 09:47 AM
10 372
i just signed up here so i hope this is the right place. i need to solve a set of 2 non-linear ordinary...
Aug8-14 03:06 PM
Bill Simpson
9 391
Hey guys, This is my first post here, so I will apologize in advance in case I'm posting this in the wrong section. ...
Aug7-14 10:07 PM
1 318
Hi Folks, I am trying to replicate a solution in Matlab for the following problem ##\displaystyle \ddot x +...
Aug7-14 10:04 PM
1 355
Hey guys, This is my first post here, so I will apologize in advance in case I'm posting this in the wrong section. ...
Aug7-14 04:04 AM
1 321
Hi, I am not really sure this is the right topic to post my question in, but it is homework so... To my data in...
Aug7-14 01:07 AM
2 333
Hi guys,I am new for programming. I made my first attempt to solve an heat equation by finite difference method and...
Aug6-14 10:35 PM
7 336
Is there a widely used free drawing program that is used in conjunction with LaTeX for math books and physics text? ...
Aug6-14 01:42 PM
13 770
If I have a function depends on for example 2 parameters f, and I know the value of this function should range between...
Jul31-14 04:30 PM
1 370
Hello, I am preparing for the exam for my Matlab class, and have run into some confusion with Structure arrays. I...
Jul31-14 12:52 PM
1 346
Hi, My question is in relation to Matlab. I'm curious, is there anyway to employ user inputs for function...
Jul31-14 12:25 PM
1 337
Hello, here is a list of the order of precedence for computations when programming, at least in MATLAB 1....
Jul31-14 12:13 PM
3 381
Hi, I perform my post-processing and analysis of data from silvaco in matlab and would like to export values from...
Jul29-14 09:19 AM
2 2,292
Hello, I am curious why the following concatenation is not working the way I thought it would. B = B = ...
Jul22-14 04:24 PM
2 1,013
Hi, I was wondering if anyone familiar with excel on a mac can help me? Am i able to do polynomial regression with...
Jul21-14 09:41 AM
the ads 13
2 2,249
Hello, I am confused about a concept, Suppose I am trying to solve a linear system ##Ax = b## I want to know why...
Jul18-14 08:10 AM
2 1,292
Integrate DiracDelta', {qs, -\, \}, Assumptions -> 0 < x < 1] Integrate DiracDelta', {qs, -\, \}, Assumptions...
Jul17-14 01:26 PM
1 1,306
Goood Day, I have a cubic root equation. I use newton-raphson for finding the roots. I want to do parameter...
Jul17-14 01:16 AM
Greg Bernhardt
1 2,146
I wrote the next code: restart; pde := diff(u(x, t), t)+diff(u(x, t), x)-(diff(diff(u(x, t), x), t))^2 = u(x, t);...
Jul17-14 01:16 AM
Greg Bernhardt
1 1,630
Hi, I'm trying to learn LaTeX and one of the things I'm trying to figure out is what is the difference between \frac...
Jul15-14 08:47 AM
4 1,571
I have found the 2D Fourier transform of a figure and then changed it to a binary image (attached). I want to find...
Jul13-14 03:16 PM
5 2,239
I just did some quick searches for open source multi dimensional data visualization, but can't find what I'm looking...
Jul12-14 07:44 AM
3 1,755
I'm not sure where else to put this thread. Does anybody know (and if you do, please tell) how to get math symbols,...
Jul4-14 11:04 AM
13 3,232
Dear all, I am looking for an interactive software that can let me play with 3d geometry. I apologize, as I am not...
Jul4-14 10:46 AM
2 2,072
Hello, I want to fit a two-parameter function to two points in this way: FindFit + x], {C, D}, x] But...
Jul3-14 12:10 AM
Bill Simpson
5 2,510
I have a function that is defined using a variety of things, some matrix algebra, some mathlink functions, etc. But...
Jul1-14 10:43 AM
2 2,183
Dear all, I have time-series data, from which I would like to compute the tricoherence. After some googling, it...
Jun30-14 10:58 PM
5 2,026
I said to Mathematica to plot a graph as this: Plot] + Exp] - 2 == 0, {x, -10, 40}]. You can see that there is...
Jun30-14 07:21 PM
1 1,939
I am trying to integrate a very messy expression using Wolfram online integrator but I get the message: "You need to...
Jun30-14 12:55 AM
4 2,578
First note that I am just learning Mat lab, and running a program created by someone else. I have a program which...
Jun26-14 08:54 AM
3 2,264

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