7.13 Tuesday, October 7, 2014
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Top new questions this week:
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[Visualisation of a recursive
function]\url{http://mathematica.stackexchange.com/questions/61323/visualis
ation-of-a-recursive-function}
Is there a way to nicely visualize recursive functions? (diagrams/plots)
More specifically I'm looking for a way to make contrast (visually)
between e.g. the cosine function which if continuously ...
- asked by Phonon (16 votes), answered by ybeltukov (23 votes)
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[Using an Image as the Fill/Texture (not background) of a Plot (not
polygon)]\url{http://mathematica.stackexchange.com/questions/61341/using-an
-image-as-the-fill-texture-not-background-of-a-plot-not-polygon}
Is it possible to use an image, rather than a color, or ColorFunction,
as the filling for a plot?
For instance, I want to make a plot using DateListPlot, and have set
Filling->Axis, and would like ...
- asked by iwantmyphd (11 votes), answered by Jens (4 votes)
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[Intelligently formatting
PDFs]\url{http://mathematica.stackexchange.com/questions/61209/intelligentl
y-formatting-pdfs}
I'm exporting a Grid[] to a PDF. It's working, but it's real ugly. Here
is an example of what it looks like:
Possibly the first problem is the reason I posted a picture of (rather
than sharing) the ...
- asked by F dot Floss (11 votes), answered by Lou (5 votes)
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[How to show matrix multiplication step by
step?]\url{http://mathematica.stackexchange.com/questions/61377/how-to-show
-matrix-multiplication-step-by-step}
Given a matrix, A:
A = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
How can I do the matrix multiplication A times A step by step?
- asked by Mats Granvik (8 votes), answered by ybeltukov (22 votes)
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[How to deal with recursion formula in
Mathematica?]\url{http://mathematica.stackexchange.com/questions/61050/how-
to-deal-with-recursion-formula-in-mathematica}
In engineering problems, I am always seeing many recursion formula.
For instance, In the book "The NURBS book", I discovered many recursion
formula
Fibonacci $$f(n+2)=f(n+1)+f(n)$$
deCasteljau ...
- asked by Tangshutao (8 votes), answered by Igor Rivin (6 votes)
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[Is there a way to revert to the built-in function after overwritting it
using
Unprotect]\url{http://mathematica.stackexchange.com/questions/61472/is-ther
e-a-way-to-revert-to-the-built-in-function-after-overwritting-it-using-u
n}
When using Unprotect, we can overwrite a functions definition:
Unprotect[Sqrt]
Sqrt[x_]="blahblah"
Protect[Sqrt]
Once this is done, can we revert to the built-in version of Sqrt?
- asked by user13675 (7 votes), answered by eldo (8 votes)
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[Why PlotStyle->Dashed make everything
dashed?]\url{http://mathematica.stackexchange.com/questions/61058/why-plots
tyle-dashed-make-everything-dashed}
Bug introduced in 10.0.0 -- appears to affect Linux only.
It has been really strange for me. I am not sure it's regression after
v10.0.1, or something went wrong with my system. After running this ...
- asked by Yi Wang (7 votes), answered by Neven Caplar (2 votes)
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Greatest hits from previous weeks:
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[Are you interested in purchasing David Wagner's "Power programming with
Mathematica"?]\url{http://mathematica.stackexchange.com/questions/16485/are
-you-interested-in-purchasing-david-wagners-power-programming-with-mathe
mat}
I recently contacted McGraw-Hill to see if they have a mechanism in
place for printing out-of-print books that are still of interest.
Specifically, I asked about "Power programming with Mathematica" ...
- asked by Todd Allen (109 votes), answered by Todd Allen (159 votes)
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[How should I reproduce this colorful swirling
gif?]\url{http://mathematica.stackexchange.com/questions/47597/how-should-i
-reproduce-this-colorful-swirling-gif}
Surfing on the web, I came upon this cool gif:
Does any one know how to reproduce this in Mathematica? I have some
ideas myself, so I will try to answer this question as well.
- asked by Ali (10 votes), answered by Kuba (23 votes)
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Can you answer these?
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[How to update bundled SQLite library (or driver?) in V10 for OS
X]\url{http://mathematica.stackexchange.com/questions/61116/how-to-update-b
undled-sqlite-library-or-driver-in-v10-for-os-x}
I've been using undocumented Database functions with Mathematica V9 to
acces my SQLite database, which is a Firefox-generated database that
contains cookies.
db = Database`OpenDatabase[
...
- asked by shrx (3 votes)
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[Is it possible to implement symbolic sub
matrices?]\url{http://mathematica.stackexchange.com/questions/61442/is-it-p
ossible-to-implement-symbolic-sub-matrices}
The accepted answer in the following link:
http://stackoverflow.com/questions/5708208/symbolic-matrices-in-mathemat
ica-with-unknown-dimensions
provides a functionality to create symbolic matrices ...
- asked by Kagaratsch (1 vote)
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[Format Mathematica complex number for fortran code
use]\url{http://mathematica.stackexchange.com/questions/61432/format-mathem
atica-complex-number-for-fortran-code-use}
I'm using Mathematica 10. I am trying to write into a file complex
number output to then be read by a Fortran code.
But when I do :
Print[comp, " ", FortranForm[comp]]
I get this :
...
- asked by berhan (1 vote)