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Question
Why is scatter so slow for variable marker size?
I found something very strange and annoying. The following code generates 1000 points randomly in the plane, then moves them a b...
mer än 5 år ago | 0 answers | 0
0
answersQuestion
Is there a way to control distortion in Matlab's 3D viewer?
The background of this problem relates to my attempt to combine output from a ray tracer with Matlab's 3d plotters. When doing r...
nästan 9 år ago | 2 answers | 0
2
answersQuestion
Is there a way to obtain light intensity information when lighting a surface?
Suppose we create a very basic surface and single-faced lighting. peaks(10) light <</matlabcentral/answers/uploaded...
nästan 9 år ago | 0 answers | 0
0
answersQuestion
mex unable to find an include file
I'm trying to use mex to compile a file, but it does not seem to be able to find an include file. I am using the test file yprim...
ungefär 9 år ago | 1 answer | 0
1
answerThree ways to do the same integration leading to three different speeds: why?
This is a later 'answer' added to complement the above answers about the overhead in concatenating arrays and modularizing via f...
ungefär 9 år ago | 0
Question
Three ways to do the same integration leading to three different speeds: why?
Here is a code that does the trapezoid rule applied to a function on [0, 100] and where I use a random vector with 1000 entries....
nästan 10 år ago | 3 answers | 0
3
answersQuestion
Why is Matlab not setting the RGB colors properly?
I'm trying to change the color settings for my Matlab (R2013A). For example, see this link <http://undocumentedmatlab.com/blog/c...
nästan 10 år ago | 0 answers | 1
0
answersCreating vector plots of wireframe surfaces
Daniel Ennis, the creator of the wireframe package for Matlab, has indicated that this is related to a fundamental problem with ...
nästan 10 år ago | 0
| accepted
Question
Creating vector plots of wireframe surfaces
The situation is that you'd like to plot a surface mesh using many points, but only wish to display the mesh lines within an und...
nästan 10 år ago | 1 answer | 0
1
answerQuestion
Launching a different script than the one you're calling
In LaTeX, it's possible to have the typesetting system compile a root file even if you've called the compiler on a constituent f...
ungefär 10 år ago | 1 answer | 0
1
answerQuestion
Returning Jacobian in bvp4c/bvp5c
One can call bvp4c using something like this options = bvpset('Stats', 'on', 'RelTol', 1e-4, 'AbsTol', 1e-8); sol = bvp4...
ungefär 10 år ago | 0 answers | 1
0
answersQuestion
Detect of a plot is loglog
Quick question: Is there a way to detect whether the current figure is a loglog plot? (or regular plot or semilogx, semology)?
nästan 11 år ago | 1 answer | 0
1
answerQuestion
A black and white filter for Matlab figures
Creating grayscale images from Matlab figures can be a big pain because you have to scale your colormaps and color limits just r...
mer än 11 år ago | 0 answers | 2
0
answersQuestion
How to zoom in on figures within the dock? (2012b)
It is known that some people (including myself) are having trouble doing the basic image operations like zooming in or out when ...
mer än 11 år ago | 2 answers | 0
2
answersQuestion
Cool examples of how Matlab is useful
I teach a little side course on using Matlab, and I'd like to show a little demo of how Matlab is used *in research and industry...
nästan 12 år ago | 2 answers | 0
2
answersQuestion
Create a figure -exactly- a certain size
Consider the following code: N = 2000; [X,Y] = meshgrid(linspace(0,2*pi,N),linspace(0,2*pi,N)); Z = sin(X+Y); p =...
ungefär 12 år ago | 1 answer | 0
1
answerQuestion
Very weird bug(?) on latex interpreter
I include a code snippet which colors underneath a sine curve. There is a ylabel with the latex interpreter turned on. Changing ...
nästan 13 år ago | 1 answer | 0
1
answerQuestion
How do you stop fsolve?
Suppose I have the following call [x,fval] = fsolve(@myfun,x0) The function which I wish to solve is given by myfun,...
nästan 13 år ago | 0 answers | 0
0
answersQuestion
Why does EdgeLighting on patches not work?
I'm trying to create a line on a surface with the EdgeLighting property set to phong (for example). An example code would be ...
nästan 13 år ago | 2 answers | 0
2
answersQuestion
Lighting only certain surfaces
I'd like to create a lit sphere, to be placed on an unlit surface. For example, membrane; [x,y,z] = sphere(40); hold o...
nästan 13 år ago | 1 answer | 2
1
answerQuestion
Line resolution and crispness
I notice that often when I draw lines in Matlab, the line is not very crisp. Here are two images where this cragginess is appare...
nästan 13 år ago | 1 answer | 0
1
answerQuestion
Saving tightly cropped PDFs in Matlab
I'm sure many can empathize with my question: I have a figure that needs to be saved in a pdf format (a) without axes or label...
ungefär 13 år ago | 1 answer | 0
1
answerQuestion
Plotting contours with additional condition
Let f(z) be a complex function. Suppose I wanted to plot the contours where the imaginary part, imag(f(z)) = 0, but the real par...
ungefär 13 år ago | 1 answer | 1
1
answerQuestion
Text plots (plotting without figure in command line)
Is there a way (or a package) to plot figures in the Matlab command line without using the figures? For example, upon startup us...
ungefär 13 år ago | 3 answers | 0
3
answersQuestion
Additional output with fsolve
I'm asking what seems to be an identical question to <http://www.mathworks.com/matlabcentral/newsreader/view_thread/254710 this ...
mer än 13 år ago | 2 answers | 1
2
answersQuestion
Area plot with gradient
Suppose that I have a function f(x). You can think of f(x) as strictly positive if it helps. Now, there is a secondary funct...
mer än 13 år ago | 1 answer | 0