8.17 September 3, 2013
==================================
Top new questions this week:
==================================
[How to create a wind rose with
Mathematica?]\url{http://mathematica.stackexchange.com/questions/31257/how-
to-create-a-wind-rose-with-mathematica}
I am trying to plot wind rose in Mathematica, but have no idea how to do
this.
Any suggestions ?
- asked by bushiwo (22 votes), answered by David Carraher (16 votes)
----------------------------
[How to include Mathematica animation in a PowerPoint
presentation?]\url{http://mathematica.stackexchange.com/questions/31511/how
-to-include-mathematica-animation-in-a-powerpoint-presentation}
I want to include a Mathematica animation in PowerPoint presentation.
My code is:
SetDirectory[NotebookDirectory[]];
data = ReadList[
"C:\\Users\\luka\\Desktop\\GRAFI- DIPLOMA\\9_gibanje \
...
- asked by Luka (15 votes), answered by Vitaliy Kaurov (18 votes)
----------------------------
[How do I calculate the area of a polygon given its
coordinates?]\url{http://mathematica.stackexchange.com/questions/31241/how-
do-i-calculate-the-area-of-a-polygon-given-its-coordinates}
I have a polygon:
Polygon[{{0, 200 }, {200, 100}, {500, 300}, {100, 700}}]
How can I figure out its area? The docs page does not have any example.
So far I've reached this point with no success:
...
- asked by caligula (15 votes), answered by Kuba (14 votes)
----------------------------
[Pick elements of largest absolute
value]\url{http://mathematica.stackexchange.com/questions/31385/pick-elemen
ts-of-largest-absolute-value}
For example, given
list = {{1, -3, -5}, {2, 1, 6}, {0, 2, 4}, {-9, 2, 6}}
should return:
{-5, 6, 4, -9}
- asked by explorer (15 votes), answered by Simon Woods (19 votes)
----------------------------
[How to partition a list to make each subset's size equal and mean as
close as
possible]\url{http://mathematica.stackexchange.com/questions/31469/how-to-p
artition-a-list-to-make-each-subsets-size-equal-and-mean-as-close-as-po>
)
Suppose we have 3 lists each with 18 numbers like this:
list1 = {7.49, 7.56, 7.98, 8.09, 8.16, 8.21,
8.73, 8.64, 8.68, 8.46, 8.57, 8.29, 9.38, 9.43, 8.95, 9.04, 8.9, 9.07};
list2 = {21.08, ...
- asked by incognito007 (13 votes), answered by Vitaliy Kaurov (4 votes)
----------------------------
[How can one write a robust ListableQ
function?]\url{http://mathematica.stackexchange.com/questions/31498/how-can
-one-write-a-robust-listableq-function}
I would like to have a test that determines if a particular function is
Listable. In the case of Symbols this is merely a matter of checking
Attributes. Function definitions with the Listable ...
- asked by Mr.Wizard (12 votes), answered by Mr.Wizard (5 votes)
----------------------------
[How can I efficiently "remap" an
image?]\url{http://mathematica.stackexchange.com/questions/31274/how-can-i-
efficiently-remap-an-image}
Many image processing libraries like OpenCV, Intel Performance
Primitives or Octave have a useful function called "remap", that takes
an image, an array with X coordinates and an array with Y ...
- asked by nikie (11 votes), answered by ssch (7 votes)
==================================
Greatest hits from previous weeks:
==================================
[Voronoi diagrams for generators other than
points]\url{http://mathematica.stackexchange.com/questions/20696/voronoi-di
agrams-for-generators-other-than-points}
Any suggestions how to determine Voronoi diagram for sites other than
points, as e.g. in the picture below? Input is a raster image.
- asked by DeeDee (22 votes), answered by whuber (26 votes)
----------------------------
[How to compile
effectively?]\url{http://mathematica.stackexchange.com/questions/1803/how-t
o-compile-effectively}
What are the best practices of compiling functions? I understand that
this is a vague question, but let me list some aspects that might
trigger useful answers. Some of these have already been answered ...
- asked by Istvan Zachar (65 votes), answered by Leonid Shifrin (59
votes)
==================================
Can you answer these?
==================================
[Generating an obstacle-avoiding closed-curve with a fixed perimeter and
a target
area]\url{http://mathematica.stackexchange.com/questions/31365/generating-a
n-obstacle-avoiding-closed-curve-with-a-fixed-perimeter-and-a-target}
I was wondering if there was a neat way to solve the following problem
in Mathematica v9 -
Provided a binarized image (where we call black pixels "obstacles" or
vice versa, whichever is most ...
- asked by TilePath (3 votes)
----------------------------
[What was added to the LibraryLink API in version
9?]\url{http://mathematica.stackexchange.com/questions/31433/what-was-added
-to-the-librarylink-api-in-version-9}
Looking at the LibraryLink examples, there are several new functions and
objects, as well as example programs, that appeared in version 9. Are
these documented? If yes, where?
If would be nice to ...
- asked by Szabolcs (9 votes)
----------------------------
[Stochastic differential equations in the weak
sense]\url{http://mathematica.stackexchange.com/questions/31443/stochastic-
differential-equations-in-the-weak-sense}
There are some good discussions in http://mathematica.stackexchange.com
regarding the numerical solution of SDEs of the form
$dX(t)=a(t,X)dt+b(t,X)dW_t$, wherein $X(0)=X_{0},$ $W_t$ is the Wiener
...
- asked by Fazlollah Soleymani (1 vote)